a(n) = 1 + 85*n + 2232*n^2 + 15276*n^3.

Terms

a(0) =17594a(1) =131307a(2) =432796a(3) =1013717a(4) =1965726a(5) =3380479a(6) =5349632a(7) =7964841a(8) =11317762a(9) =15500051a(10) =20603364a(11) =26719357a(12) =33939686a(13) =42356007a(14) =52059976a(15) =63143249a(16) =75697482a(17) =89814331a(18) =105585452a(19) =123102501a(20) =142457134a(21) =163741007a(22) =187045776