Expansion of 1/(1 - Sum_{k>=1} k!*x^(k*(k+1)/2) / Product_{j=1..k} (1 - x^j)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =14a(5) =34a(6) =88a(7) =216a(8) =532a(9) =1322a(10) =3290a(11) =8142a(12) =20192a(13) =50080a(14) =124144a(15) =307878a(16) =763474a(17) =1893038a(18) =4694060a(19) =11639580a(20) =28861736a(21) =71567206a(22) =177460750a(23) =440037738a(24) =1091134276a(25) =2705618900a(26) =6708953156a(27) =16635775698a(28) =41250705518a(29) =102286806130