Stirling Number Calculator

S(n,k) partitions & cycles

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About Stirling Number Calculator

A Stirling number calculator for both kinds. Second kind S(n,k): ways to partition n elements into k non-empty subsets. First kind s(n,k): related to permutation cycles. Shows recurrences and triangle display. All calculations are client-side.

Stirling Number Calculator Features

  • S₂(n,k)
  • s₁(n,k)
  • Triangle
  • Recurrence
  • Bell numbers
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