What's the math behind this?

number_set.json

{
  "number_set": [
      [1, 1, 8],
      [2, 2, 16],
      [3, 3, 24],
      [4, 4, 32],
      [5, 5, 40],
      [6, 6, 48],
      [7, 7, 56],
      [8, 8, 64],
      [9, 9, 72],
      [10, 10, 80],
      [11, 11, 88],
      [12, 6, 6, 96],
      [13, 7, 6, 104],
      [14, 7, 7, 112],
      [15, 10, 5, 120],
      [16, 8, 8, 128],
      [17, 10, 7, 136],
      [18, 10, 8, 144],
      [19, 10, 9, 152],
      [20, 10, 10, 160],
      [21, 11, 10, 168],
      [22, 11, 11, 176],
      [23, 11, 6, 6, 184],
      [24, 10, 7, 7, 192],
      [25, 10, 10, 5, 200],
      [26, 10, 10, 6, 208],
      [27, 10, 10, 7, 216],
      [28, 10, 10, 8, 224],
      [29, 10, 10, 9, 232],
      [30, 10, 10, 10, 240],
      [31, 11, 10, 10, 248],
      [32, 11, 11, 10, 256],
      [33, 11, 11, 11, 264],
      [34, 10, 10, 7, 7, 272],
      [35, 10, 10, 10, 5, 280]
  ]
}