A020105 Ceiling of Gamma(n+9/10)/Gamma(9/10).

1, 1, 2, 5, 20, 95, 560, 3858, 30478, 271253, 2685396, 29270807, 348322597, 4493361501, 62457724854, 930620100319, 14796859595059, 250066927156482, 4476197996101024, 84600142126309336, 1683542828313555775, 35186045111753315689, 770574387947397613571, 17646153483995405350754

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[9/10, Range[0, 25]]] (* Paolo Xausa, Jan 14 2026 *)

Crossrefs

Cf. A020015, A020060.

Sequence in context: A366452 A277686 A115082 * A347071 A214816 A020005

Adjacent sequences: A020102 A020103 A020104 * A020106 A020107 A020108

Keyword

nonn

Author

Simon Plouffe

Extensions

More terms from Paolo Xausa, Jan 14 2026

Status

approved