a(n) = n^3 + n^2 + 1.

Terms

a(0) =1a(1) =3a(2) =13a(3) =37a(4) =81a(5) =151a(6) =253a(7) =393a(8) =577a(9) =811a(10) =1101a(11) =1453a(12) =1873a(13) =2367a(14) =2941a(15) =3601a(16) =4353a(17) =5203a(18) =6157a(19) =7221a(20) =8401a(21) =9703a(22) =11133a(23) =12697a(24) =14401a(25) =16251a(26) =18253a(27) =20413a(28) =22737a(29) =25231