a(n) = 5*n^2 + 11*n + 1.

Terms

a(0) =1a(1) =17a(2) =43a(3) =79a(4) =125a(5) =181a(6) =247a(7) =323a(8) =409a(9) =505a(10) =611a(11) =727a(12) =853a(13) =989a(14) =1135a(15) =1291a(16) =1457a(17) =1633a(18) =1819a(19) =2015a(20) =2221a(21) =2437a(22) =2663a(23) =2899a(24) =3145a(25) =3401a(26) =3667a(27) =3943a(28) =4229a(29) =4525