a(n) = 6144*n^4 - 29184*n^3 + 52416*n^2 - 41840*n + 12465.

Terms

a(0) =12465a(1) =1a(2) =3281a(3) =68385a(4) =388849a(5) =1305665a(6) =3307281a(7) =7029601a(8) =13255985a(9) =22917249a(10) =37091665a(11) =57004961a(12) =84030321a(13) =119688385a(14) =165647249a(15) =223722465a(16) =295877041a(17) =384221441a(18) =491013585a(19) =618658849a(20) =769710065a(21) =946867521a(22) =1152978961a(23) =1391039585a(24) =1664192049a(25) =1975726465