Expansion of Product_{k>=1} (1 + x^(2*k-1))^(k*(5*k-3)/2)*(1 + x^(2*k))^(k*(5*k+3)/2).

Terms

a(0) =1a(1) =1a(2) =4a(3) =11a(4) =26a(5) =65a(6) =150a(7) =343a(8) =760a(9) =1670a(10) =3574a(11) =7561a(12) =15752a(13) =32396a(14) =65850a(15) =132386a(16) =263447a(17) =519316a(18) =1014744a(19) =1966234a(20) =3780464a(21) =7215020a(22) =13674227a(23) =25744768a(24) =48166429a(25) =89576421a(26) =165638008a(27) =304615115a(28) =557275053a(29) =1014398476