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 A307494 Expansion of Product_{j>=1} 1/(1 - j*(-1 + Product_{k>=1} 1/(1 - k*x^k))^j). 1
 1, 1, 6, 30, 145, 680, 3151, 14394, 65217, 293223, 1310255, 5820697, 25725139, 113161286, 495659656, 2162471602, 9399682398, 40716499477, 175798072996, 756709512011, 3247830724594, 13901967775738, 59352638426839, 252778786749676, 1074061758972744, 4553583433874616, 19264461634793094 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA G.f.: g(g(x) - 1), where g(x) = g.f. of A006906. MATHEMATICA nmax = 26; CoefficientList[Series[Product[1/(1 - j (-1 + Product[1/(1 - k x^k), {k, 1, nmax}])^j), {j, 1, nmax}], {x, 0, nmax}], x] CROSSREFS Cf. A006906, A307127, A307321, A307566. Sequence in context: A276022 A046945 A216045 * A316593 A089817 A006320 Adjacent sequences:  A307491 A307492 A307493 * A307495 A307496 A307497 KEYWORD nonn AUTHOR Ilya Gutkovskiy, Apr 15 2019 STATUS approved

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Last modified December 10 04:15 EST 2019. Contains 329885 sequences. (Running on oeis4.)