a(n) = n^2 + n + 7.

Terms

a(0) =7a(1) =9a(2) =13a(3) =19a(4) =27a(5) =37a(6) =49a(7) =63a(8) =79a(9) =97a(10) =117a(11) =139a(12) =163a(13) =189a(14) =217a(15) =247a(16) =279a(17) =313a(18) =349a(19) =387a(20) =427a(21) =469a(22) =513a(23) =559a(24) =607a(25) =657a(26) =709a(27) =763a(28) =819a(29) =877