a(n) = n^3 + 6.

Terms

a(0) =6a(1) =7a(2) =14a(3) =33a(4) =70a(5) =131a(6) =222a(7) =349a(8) =518a(9) =735a(10) =1006a(11) =1337a(12) =1734a(13) =2203a(14) =2750a(15) =3381a(16) =4102a(17) =4919a(18) =5838a(19) =6865a(20) =8006a(21) =9267a(22) =10654a(23) =12173a(24) =13830a(25) =15631a(26) =17582a(27) =19689a(28) =21958a(29) =24395