The pattern of the universe

pattern.js

// Usage: Run the below code in your termainal by either running node and copying the code into the REPL or by saving the code to a file and running node pattern.js
// It will output a consistent pattern no matter how high you count.
// Change 1000 to a higher number to test it

let number = 1;

while (number < 1000) {
  next = number + 1;
  let reduce = number * next + "";
  while (reduce.length > 1) {
    reduce = reduce.split('').reduce((prev, num) => prev + parseInt(num), 0) + "";
  }
  console.log(reduce);
  number = next;
}

Example output:

2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9, 2, 6, 3, 2, 3, 6, 2, 9, 9

Basically a repeating pattern of 2, 6, 3, 2, 3, 6, 2, 9, 9

This pattern is created by multiplying every number by it's previous number and then adding each digit in the number together. So 1+2=2 and 2*3=6 etc. But once you get to multi-digit numbers, you reduce them to a single digit. So 123 * 124 = 15,252 and 1 + 5 + 2 + 5 + 2 = 15 and 1 + 5 = 6.

If you add instead of multiply you get a different pattern: 3,5,7,9,2,4,6,8,1

3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1,3,5,7,9,2,4,6,8,1