Numbers that are the sum of at most 3 nonzero 4th powers.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =16a(5) =17a(6) =18a(7) =32a(8) =33a(9) =48a(10) =81a(11) =82a(12) =83a(13) =97a(14) =98a(15) =113a(16) =162a(17) =163a(18) =178a(19) =243a(20) =256a(21) =257a(22) =258a(23) =272a(24) =273a(25) =288a(26) =337a(27) =338a(28) =353a(29) =418