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

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =18a(5) =36a(6) =72a(7) =144a(8) =292a(9) =586a(10) =1172a(11) =2344a(12) =4696a(13) =9396a(14) =18792a(15) =37584a(16) =75186a(17) =150380a(18) =300764a(19) =601528a(20) =1203092a(21) =2406200a(22) =4812408a(23) =9624816a(24) =19249704a(25) =38499446a(26) =76998908a(27) =153997824a(28) =307995792a(29) =615991660