A303395 - OEIS

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A303395

Expansion of Product_{n>=1} ((1 - (8*x)^n)/(1 + (8*x)^n))^(1/8).

1, -2, -14, -140, -586, -5628, -44492, -187864, -482906, -17262828, -37958116, 65242328, -2453533124, 21817485480, 113877127592, -2570293967536, 28064994368262, 169252831757492, -188223954450804, 12624245609040632, 54083158292451540, -158891267358816264 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..21.`
	PROG	`(PARI) N=66; x='x+O('x^N); Vec(prod(k=1, N, ((1-(8x)^k)/(1+(8x)^k))^(1/8)))`
	CROSSREFS	`Expansion of Product_{n>=1} ((1 + (2^bx)^n)/(1 - (2^b)x^n))^(1/(2^b)): A002448 (b=0), A303306 (b=1), A303394 (b=2), this sequence (b=3).` `Cf. A303381.` `Sequence in context: A336182 A224729 A355722 * A301271 A245267 A328004` `Adjacent sequences: A303392 A303393 A303394 * A303396 A303397 A303398`
	KEYWORD	`sign`
	AUTHOR	`Seiichi Manyama, Apr 23 2018`
	STATUS	`approved`

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Last modified March 29 22:15 EDT 2023. Contains 361599 sequences. (Running on oeis4.)