# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a232976 Showing 1-1 of 1 %I A232976 #11 Jan 03 2021 22:58:28 %S A232976 1,1,11,37,563,1695,12255,36333,972867,2946747,18641221,55674771, %T A232976 691993655,2037484683,12296580999,36106933117,1708708848483, %U A232976 4955653540051,28943726818665,83124892750711,958302911335293,2730521640247521,15561772451632937,43970981993285115,993588138105790887,2785544697144356207,15601240187271712393,43442724873393477375,482971671644633204159 %N A232976 Numerators of coefficients in expansion of Product_{k>=1} 1/(1-x^k)^(k/2). %C A232976 This is the square root of the g.f. for planar partitions (A000219). %e A232976 1, 1/2, 11/8, 37/16, 563/128, 1695/256, 12255/1024, 36333/2048, 972867/32768, ... %p A232976 mul( 1/(1-x^k)^(k/2),k=1..29) ; %p A232976 taylor(%,x=0,29) ; %p A232976 gfun[seriestolist](%) ; %p A232976 map(numer,%) ; # _R. J. Mathar_, Dec 08 2013 %Y A232976 Denominators are A046161. Cf. A000219. %K A232976 nonn,frac %O A232976 0,3 %A A232976 _N. J. A. Sloane_, Dec 07 2013 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE