A020125 Ceiling of Gamma(n+5/6)/Gamma(5/6).

1, 1, 2, 5, 17, 81, 468, 3197, 25043, 221209, 2175217, 23564851, 278850731, 3578584369, 49503750433, 734305631413, 11626505830702, 195712848150141, 3490212458677515, 65732334638426517, 1303691303662125906, 27160235492960956372, 592998474929647547442, 13540131844226952333245

Offset

0,3

Links

Paolo Xausa, Table of n, a(n) for n = 0..400

Maple

Digits := 64:f := proc(n, x) ceil(GAMMA(n+x)/GAMMA(x)); end;

Mathematica

Ceiling[Pochhammer[5/6, Range[0, 25]]] (* Paolo Xausa, Jan 15 2026 *)

Crossrefs

Cf. A020035, A020080.

Sequence in context: A054499 A001186 A125282 * A076322 A098540 A382159

Adjacent sequences: A020122 A020123 A020124 * A020126 A020127 A020128

Keyword

nonn

Author

Simon Plouffe

Extensions

More terms from Paolo Xausa, Jan 15 2026

Status

approved