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A082556 G.f.: Product_{m>=1} 1/(1-x^m)^30. 2
1, 30, 495, 5890, 56265, 456786, 3263990, 21017040, 124018290, 679118550, 3484681077, 16884109080, 77731521980, 341784289770, 1441489548195, 5852747363518, 22948550618400, 87131200662540, 321100847115950, 1150962640399770, 4020058004480100, 13704611801774340 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..1000

Index entries for expansions of Product_{k >= 1} (1-x^k)^m

MAPLE

a:= proc(n) option remember; `if`(n=0, 1, add(

      numtheory[sigma](j)*a(n-j), j=1..n)*30/n)

    end:

seq(a(n), n=0..25);  # Alois P. Heinz, Mar 12 2015

CROSSREFS

Cf. 30th column of A144064.

Sequence in context: A212473 A127544 A133927 * A036223 A022658 A090957

Adjacent sequences:  A082553 A082554 A082555 * A082557 A082558 A082559

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 04 2003

STATUS

approved

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Last modified July 21 02:02 EDT 2019. Contains 325189 sequences. (Running on oeis4.)