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A258478 Number of partitions of n into two sorts of parts having exactly 8 parts of the second sort. 2
1, 10, 56, 231, 782, 2299, 6074, 14751, 33454, 71676, 146357, 286749, 542017, 992683, 1768044, 3071242, 5216904, 8682987, 14188324, 22794857, 36061113, 56235914, 86551836, 131580012, 197774522, 294103819, 433033550, 631622692, 913255789, 1309504156, 1863113073 (list; graph; refs; listen; history; text; internal format)
OFFSET

8,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 8..1000

MAPLE

b:= proc(n, i) option remember; series(`if`(n=0, 1,

      `if`(i<1, 0, add(b(n-i*j, i-1)*add(x^t*

       binomial(j, t), t=0..min(8, j)), j=0..n/i))), x, 9)

    end:

a:= n-> coeff(b(n$2), x, 8):

seq(a(n), n=8..40);

CROSSREFS

Column k=8 of A256193.

Sequence in context: A268462 A296918 A001786 * A320756 A053309 A035040

Adjacent sequences:  A258475 A258476 A258477 * A258479 A258480 A258481

KEYWORD

nonn

AUTHOR

Alois P. Heinz, May 31 2015

STATUS

approved

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Last modified December 2 05:01 EST 2021. Contains 349437 sequences. (Running on oeis4.)