Expansion of Product_{k>0} (Sum_{m>=0} x^(k*m^2)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =3a(6) =5a(7) =6a(8) =8a(9) =12a(10) =12a(11) =17a(12) =23a(13) =27a(14) =32a(15) =41a(16) =52a(17) =61a(18) =77a(19) =91a(20) =110a(21) =134a(22) =159a(23) =188a(24) =228a(25) =271a(26) =314a(27) =380a(28) =444a(29) =518