a(n) = (n^2 + 4*n + 6) * n^2.

Terms

a(0) =0a(1) =11a(2) =72a(3) =243a(4) =608a(5) =1275a(6) =2376a(7) =4067a(8) =6528a(9) =9963a(10) =14600a(11) =20691a(12) =28512a(13) =38363a(14) =50568a(15) =65475a(16) =83456a(17) =104907a(18) =130248a(19) =159923a(20) =194400a(21) =234171a(22) =279752a(23) =331683a(24) =390528a(25) =456875a(26) =531336a(27) =614547a(28) =707168a(29) =809883