login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A133724
Column 5 of triangle in A133721.
2
0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 22, 13, 7, 3, 1, 226, 81, 25, 6, 1, 1371, 325, 65, 10, 1, 5901, 995, 140, 15, 1, 20097, 2541, 266, 21, 1, 57813, 5698, 462, 28, 1, 146427, 11586, 750, 36, 1, 335742, 21825, 1155, 45, 1, 710677, 38665, 1705, 55, 1
OFFSET
1,11
MAPLE
A133724 := proc(n)
A133721(n, 5) ;
end proc:
seq(A133724(n), n=1..60) ; # R. J. Mathar, Nov 23 2011
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, 5], {m, 1, 60}] (* Jean-François Alcover, Apr 03 2020, after R. J. Mathar *)
CROSSREFS
Sequence in context: A033967 A262244 A140872 * A196030 A196027 A040464
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 30 2007
STATUS
approved