a(n) = 100*n^2 + n.

Terms

a(0) =101a(1) =402a(2) =903a(3) =1604a(4) =2505a(5) =3606a(6) =4907a(7) =6408a(8) =8109a(9) =10010a(10) =12111a(11) =14412a(12) =16913a(13) =19614a(14) =22515a(15) =25616a(16) =28917a(17) =32418a(18) =36119a(19) =40020a(20) =44121a(21) =48422a(22) =52923a(23) =57624a(24) =62525a(25) =67626a(26) =72927a(27) =78428a(28) =84129a(29) =90030