A133733 Column 6 of triangle in A133721.

0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 34, 22, 13, 7, 3, 1, 561, 226, 81, 25, 6, 1, 5087, 1371, 325, 65, 10, 1, 30569, 5901, 995, 140, 15, 1, 138103, 20097, 2541, 266, 21, 1, 507360, 57813, 5698, 462, 28, 1, 1594272, 146427, 11586, 750, 36, 1, 4433484, 335742, 21825, 1155, 45, 1

Offset

1,13

Links

Table of n, a(n) for n=1..60.

Mathematica

A133713[l_, cl_] := Module[{g, k, s}, g = 1; For[k = 1, k <= cl + 1, k++, s = Sum[Binomial[Binomial[l, k + 1] + i - 1, i]*t^(i*k), {i, 0, Ceiling[ cl/k]}]; g = g*s]; SeriesCoefficient[g, {t, 0, cl}]];
a[m_, n_] := A133713[Ceiling[m/n], n*Ceiling[m/n] - m];
Table[a[m, 6], {m, 1, 60}] (* Jean-François Alcover, Apr 03 2020, after R. J. Mathar *)

Crossrefs

Sequence in context: A033972 A298086 A114031 * A214038 A070727 A298894

Adjacent sequences: A133730 A133731 A133732 * A133734 A133735 A133736

Keyword

nonn

Author

N. J. A. Sloane, Dec 30 2007

Extensions

More terms from Jean-François Alcover, Apr 03 2020

Status

approved