a(n) = n^3 + 1.

Terms

a(0) =0a(1) =1a(2) =2a(3) =9a(4) =28a(5) =65a(6) =126a(7) =217a(8) =344a(9) =513a(10) =730a(11) =1001a(12) =1332a(13) =1729a(14) =2198a(15) =2745a(16) =3376a(17) =4097a(18) =4914a(19) =5833a(20) =6860a(21) =8001a(22) =9262a(23) =10649a(24) =12168a(25) =13825a(26) =15626a(27) =17577a(28) =19684a(29) =21953