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A303440 Expansion of Product_{k>=1} ((1 + (2^k*x)^k)/(1 - (2^k*x)^k))^(1/2^k). 4
1, 2, 10, 148, 8502, 2114924, 2151771524, 8800410198536, 144132802083312550, 9445021284412120235340, 2475898969479166225559648172, 2596153381122039693822323043973720, 10889040933791649565507987988056678914620 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) ~ 2^(n^2 - n + 1). - Vaclav Kotesovec, Apr 25 2018
PROG
(PARI) N=20; x='x+O('x^N); Vec(prod(k=1, N, ((1+(2^k*x)^k)/(1-(2^k*x)^k))^(1/2^k)))
CROSSREFS
Sequence in context: A295207 A213457 A060595 * A086619 A294373 A194026
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Apr 24 2018
STATUS
approved

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Last modified February 24 04:07 EST 2024. Contains 370288 sequences. (Running on oeis4.)