a(0) = 1, a(n) = 17*n^2 + 2 for n>0.

Terms

a(0) =1a(1) =19a(2) =70a(3) =155a(4) =274a(5) =427a(6) =614a(7) =835a(8) =1090a(9) =1379a(10) =1702a(11) =2059a(12) =2450a(13) =2875a(14) =3334a(15) =3827a(16) =4354a(17) =4915a(18) =5510a(19) =6139a(20) =6802a(21) =7499a(22) =8230a(23) =8995a(24) =9794a(25) =10627a(26) =11494a(27) =12395a(28) =13330a(29) =14299