A020120 Ceiling of Gamma(n+5/7)/Gamma(5/7).

1, 1, 2, 4, 13, 59, 333, 2233, 17226, 150104, 1458150, 15623032, 183012660, 2326875240, 31911431854, 469553925839, 7378704548889, 123329776031415, 2184698889699347, 40885079221516336, 806020133224179177, 16696131331072282939, 362544566046141000958, 8234940857333774164616

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[5/7, Range[0, 25]]] (* Paolo Xausa, Jan 15 2026 *)

Crossrefs

Cf. A020030, A020075, A220606.

Sequence in context: A173184 A111977 A201691 * A020097 A139149 A297861

Adjacent sequences: A020117 A020118 A020119 * A020121 A020122 A020123

Keyword

nonn

Author

Simon Plouffe

Extensions

More terms from Paolo Xausa, Jan 15 2026

Status

approved