Expansion of g.f. (3x+1)/((1-3*x)*(1+5*x+9*x^2)).

Terms

a(0) =1a(1) =1a(2) =4a(3) =25a(4) =1a(5) =256a(6) =169a(7) =1225a(8) =5476a(9) =961a(10) =64009a(11) =25600a(12) =358801a(13) =1164241a(14) =515524a(15) =15642025a(16) =3243601a(17) =101284096a(18) =239228089a(19) =216825625a(20) =3736387876a(21) =287336401a(22) =27697946329a(23) =47210598400