A020031 Nearest integer to Gamma(n + 4/7)/Gamma(4/7).

1, 1, 1, 2, 8, 38, 210, 1380, 10450, 89574, 857352, 9063435, 104876887, 1318452295, 17893281148, 260730668151, 4059948975491, 67279154450986, 1182190856781603, 21954973054515490, 429690186924088871

Offset

0,4

Comments

a(n) equals A020121(n) or A020076(n). - R. J. Mathar, May 18 2007

Links

Table of n, a(n) for n=0..20.

Maple

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

Mathematica

Round[Gamma[Range[0, 20]+4/7]/Gamma[4/7]] (* Harvey P. Dale, Dec 24 2023 *)

Crossrefs

Cf. A020121, A020076, A220609.

Sequence in context: A365751 A192784 A108246 * A179323 A001340 A275707

Adjacent sequences: A020028 A020029 A020030 * A020032 A020033 A020034

Keyword

nonn

Author

Simon Plouffe

Status

approved