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

Terms

a(0) =1a(1) =-1a(2) =-3a(3) =-2a(4) =7a(5) =19a(6) =8a(7) =-53a(8) =-119a(9) =-18a(10) =387a(11) =727a(12) =-112a(13) =-2745a(14) =-4315a(15) =2238a(16) =18991a(17) =24715a(18) =-24296a(19) =-128461a(20) =-135023a(21) =219502a(22) =850635a(23) =688239a(24) =-1806560a(25) =-5515441a(26) =-3116403a(27) =14022398a(28) =34994967a(29) =10783939