a(n) = 2*n^2 + 22*n + 9.

Terms

a(0) =33a(1) =61a(2) =93a(3) =129a(4) =169a(5) =213a(6) =261a(7) =313a(8) =369a(9) =429a(10) =493a(11) =561a(12) =633a(13) =709a(14) =789a(15) =873a(16) =961a(17) =1053a(18) =1149a(19) =1249a(20) =1353a(21) =1461a(22) =1573a(23) =1689a(24) =1809a(25) =1933a(26) =2061a(27) =2193a(28) =2329a(29) =2469