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

Terms

a(0) =1a(1) =1a(2) =17a(3) =98a(4) =514a(5) =2435a(6) =12752a(7) =58849a(8) =277362a(9) =1243056a(10) =5523734a(11) =23889860a(12) =102176581a(13) =427458488a(14) =1768064752a(15) =7197695011a(16) =28955246228a(17) =114977761216a(18) =451686925462