a(n) = 121*n^2 + n.

Terms

a(0) =122a(1) =486a(2) =1092a(3) =1940a(4) =3030a(5) =4362a(6) =5936a(7) =7752a(8) =9810a(9) =12110a(10) =14652a(11) =17436a(12) =20462a(13) =23730a(14) =27240a(15) =30992a(16) =34986a(17) =39222a(18) =43700a(19) =48420a(20) =53382a(21) =58586a(22) =64032a(23) =69720a(24) =75650a(25) =81822a(26) =88236a(27) =94892a(28) =101790a(29) =108930