Expansion of Product_{k>=1} (1+x^k)^(k^4).

Terms

a(0) =1a(1) =1a(2) =16a(3) =97a(4) =457a(5) =2297a(6) =11113a(7) =52049a(8) =235334a(9) =1039886a(10) =4497930a(11) =19074006a(12) =79418883a(13) =325184763a(14) =1311252535a(15) =5212704708a(16) =20449320159a(17) =79231806015a(18) =303428397505