a(n) = (12*n + 11)^5.

Terms

a(0) =161051a(1) =6436343a(2) =52521875a(3) =229345007a(4) =714924299a(5) =1804229351a(6) =3939040643a(7) =7737809375a(8) =14025517307a(9) =23863536599a(10) =38579489651a(11) =59797108943a(12) =89466096875a(13) =129891985607a(14) =183765996899a(15) =254194901951a(16) =344730881243a(17) =459401384375a(18) =602738989907a(19) =779811265199a(20) =996250626251