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A294620 Expansion of Product_{k>0} (1 - k^2*x^k)^(1/k). 2
1, -1, -2, -1, -3, 7, -12, 32, -10, -15, 77, 187, -760, 846, 1382, -4197, 1371, 6650, -9991, 19220, -32439, -80889, 290596, 127853, -1372003, 913414, 3253746, -6728692, 2302327, 14461937, -46087740, 66588519, 15702643, -357119564, 752905288, 310992687 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
FORMULA
a(0) = 1 and a(n) = -(1/n) * Sum_{k=1..n} A073705(k)*a(n-k) for n > 0.
PROG
(PARI) N=66; x='x+O('x^N); Vec(prod(k=1, N, (1-k^2*x^k)^(1/k)))
CROSSREFS
Sequence in context: A077173 A063509 A137766 * A010758 A259419 A019224
KEYWORD
sign
AUTHOR
Seiichi Manyama, Nov 05 2017
STATUS
approved

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Last modified July 18 06:23 EDT 2024. Contains 374377 sequences. (Running on oeis4.)