a(n) = n^5 + n^3 + n^2.

Terms

a(0) =0a(1) =3a(2) =44a(3) =279a(4) =1104a(5) =3275a(6) =8028a(7) =17199a(8) =33344a(9) =59859a(10) =101100a(11) =162503a(12) =250704a(13) =373659a(14) =540764a(15) =762975a(16) =1052928a(17) =1425059a(18) =1895724a(19) =2483319a(20) =3208400a(21) =4093803a(22) =5164764a(23) =6449039a(24) =7977024a(25) =9781875a(26) =11899628a(27) =14369319a(28) =17233104a(29) =20536379