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

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =35a(6) =91a(7) =233a(8) =597a(9) =1517a(10) =3885a(11) =9922a(12) =25333a(13) =64683a(14) =165181a(15) =421828a(16) =1077277a(17) =2750993a(18) =7025168a(19) =17940298a(20) =45814165a(21) =116996152a(22) =298774246a(23) =762982615a(24) =1948434235a(25) =4975732669a(26) =12706571546a(27) =32448880807a(28) =82864981016a(29) =211613009498