A383625 - OEIS

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A383625

Expansion of 1/( Product_{k=0..7} (1 + (-1)^k * (2*k+1) * x) )^(1/8).

2

1, 1, 43, 127, 4243, 20371, 560709, 3642129, 86291955, 690569251, 14567545105, 135548975101, 2614274677597, 27191058449101, 489590162677771, 5534086571696943, 94565644541691219, 1137954908186418771, 18691690961308817377, 235813806878453147485, 3760260498723044082985

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..20.

PROG

(PARI) my(N=30, x='x+O('x^N)); Vec(1/prod(k=0, 7, 1+(-1)^k*(2*k+1)*x)^(1/8))

CROSSREFS

Cf. A002426, A383624, A383626.

Sequence in context: A124826 A136069 A140028 * A199818 A248401 A136074

Adjacent sequences: A383622 A383623 A383624 * A383626 A383627 A383628

KEYWORD

nonn

AUTHOR

Seiichi Manyama, May 03 2025

STATUS

approved