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Growing number

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  • 1, 2, 2, 3, 3, 3, 4, 4, 4, ...
    4
  • 1, 3, 5, .., 9
    7
  • 8, 12, 16, ...
    20
  • 7, 8, 10, 13,
    17
  • 8, 11, 14, ..
    17
  • 2,5, 8, 11, ...
    14
  • 2, 6, 8, 12,
    16
  • 2, 3, 7,11,
    16
  • 1, 3, 5, 7, ..
    9
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