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

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =16a(6) =17a(7) =18a(8) =19a(9) =32a(10) =33a(11) =34a(12) =48a(13) =49a(14) =64a(15) =81a(16) =82a(17) =83a(18) =84a(19) =97a(20) =98a(21) =99a(22) =113a(23) =114a(24) =129a(25) =162a(26) =163a(27) =164a(28) =178a(29) =179