OFFSET
0,20
FORMULA
a(n) = -(1/n)*Sum_{k=1..n} A284280(k)*a(n-k), a(0) = 1.
MATHEMATICA
CoefficientList[Series[Product[1 - x^(5k + 2), {k, 0, 100}], {x, 0, 100}], x] (* Indranil Ghosh, Mar 25 2017 *)
PROG
(PARI) Vec(prod(k=0, 100, 1 - x^(5*k + 2)) + O(x^101)) \\ Indranil Ghosh, Mar 25 2017
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Mar 25 2017
STATUS
approved