Chiliagonal number

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In mathematics, a chiliagonal number is a number that can be arranged to form a chiliagon. The mathematical formula for the n-th chiliagonal number is

<math>n(499n-498).</math>

The first few chiliagonal numbers are:

  • 1
  • 1000
  • 2997
  • 5992
  • 9985
  • 14976
  • 20965
  • 27952
  • 35937
  • 44920
  • 54901
  • 65880
  • 77857
  • 90832
  • 104805
  • 119776
  • 135745
  • 152712
  • 170677
  • 189640
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