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A303445
Expansion of Product_{k>=1} ((1 + (8^k*x)^k)/(1 - (8^k*x)^k))^(1/8^k).
2
1, 2, 130, 524588, 137440010582, 2305843284159782076, 2475880083182464573602036628, 170141183465420992188660515119769982616, 748288838313762576487529438443476930331940262147046
OFFSET
0,2
LINKS
FORMULA
a(n) ~ 2^(3*n^2 - 3*n + 1). - Vaclav Kotesovec, Apr 25 2018
PROG
(PARI) N=20; x='x+O('x^N); Vec(prod(k=1, N, ((1+(8^k*x)^k)/(1-(8^k*x)^k))^(1/8^k)))
CROSSREFS
Sequence in context: A182421 A218434 A354054 * A158110 A117626 A084549
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Apr 24 2018
STATUS
approved