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 A232976 Numerators of coefficients in expansion of Product_{k>=1} 1/(1-x^k)^(k/2). 1
 1, 1, 11, 37, 563, 1695, 12255, 36333, 972867, 2946747, 18641221, 55674771, 691993655, 2037484683, 12296580999, 36106933117, 1708708848483, 4955653540051, 28943726818665, 83124892750711, 958302911335293, 2730521640247521, 15561772451632937, 43970981993285115, 993588138105790887, 2785544697144356207, 15601240187271712393, 43442724873393477375, 482971671644633204159 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS This is the square root of the g.f. for planar partitions (A000219). LINKS EXAMPLE 1, 1/2, 11/8, 37/16, 563/128, 1695/256, 12255/1024, 36333/2048, 972867/32768, ... MAPLE mul( 1/(1-x^k)^(k/2), k=1..29) ; taylor(%, x=0, 29) ; gfun[seriestolist](%) ; map(numer, %) ; # R. J. Mathar, Dec 08 2013 CROSSREFS Denominators are A046161. Cf. A000219. Sequence in context: A052432 A104269 A084014 * A084018 A235874 A012820 Adjacent sequences: A232973 A232974 A232975 * A232977 A232978 A232979 KEYWORD nonn,frac AUTHOR N. J. A. Sloane, Dec 07 2013 STATUS approved

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Last modified April 1 19:13 EDT 2023. Contains 361695 sequences. (Running on oeis4.)