generate-matrix.js

const N = 2;
const RANDOM_INITIAL_RANGE = 10;
const MATRIX_LENGTH = Math.pow(2, N) + 1;

function randomInRange(min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min);
}

function generateeMatrix() {
  const matrix = new Array(MATRIX_LENGTH)
    .fill(0)
    .map(() => new Array(MATRIX_LENGTH).fill(null));

  matrix[0][MATRIX_LENGTH - 1] = randomInRange(0, RANDOM_INITIAL_RANGE);
  matrix[MATRIX_LENGTH - 1][0] = randomInRange(0, RANDOM_INITIAL_RANGE);
  matrix[0][0] = randomInRange(0, RANDOM_INITIAL_RANGE);
  matrix[MATRIX_LENGTH - 1][MATRIX_LENGTH - 1] = randomInRange(
    0,
    RANDOM_INITIAL_RANGE
  );

  return matrix;
}