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

Terms

a(0) =32a(1) =98a(2) =288a(3) =722a(4) =1568a(5) =3042a(6) =5408a(7) =8978a(8) =14112a(9) =21218a(10) =30752a(11) =43218a(12) =59168a(13) =79202a(14) =103968a(15) =134162a(16) =170528a(17) =213858a(18) =264992a(19) =324818a(20) =394272a(21) =474338a(22) =566048a(23) =670482a(24) =788768a(25) =922082a(26) =1071648a(27) =1238738a(28) =1424672a(29) =1630818