a guy

guy.js

let inputVal = 512;
let x = [0];
let value = 1;
let step = 1;
let nextBase = 10;

while (value < inputVal) {
    x.push(value);
    value += step;
    if (value === nextBase) {
        nextBase *= 10;
        step *= 10;
    }
}

x.push(inputVal);

console.log(x);

just run node ./guy.js