a(n) = 121*n^2 - 11.

Terms

a(0) =110a(1) =473a(2) =1078a(3) =1925a(4) =3014a(5) =4345a(6) =5918a(7) =7733a(8) =9790a(9) =12089a(10) =14630a(11) =17413a(12) =20438a(13) =23705a(14) =27214a(15) =30965a(16) =34958a(17) =39193a(18) =43670a(19) =48389a(20) =53350a(21) =58553a(22) =63998a(23) =69685a(24) =75614a(25) =81785a(26) =88198a(27) =94853a(28) =101750a(29) =108889