a(0) = 1, a(n) = 13*n^2 + 2 for n>0.

Terms

a(0) =1a(1) =15a(2) =54a(3) =119a(4) =210a(5) =327a(6) =470a(7) =639a(8) =834a(9) =1055a(10) =1302a(11) =1575a(12) =1874a(13) =2199a(14) =2550a(15) =2927a(16) =3330a(17) =3759a(18) =4214a(19) =4695a(20) =5202a(21) =5735a(22) =6294a(23) =6879a(24) =7490a(25) =8127a(26) =8790a(27) =9479a(28) =10194a(29) =10935