Numbers that are the sum of at most 7 nonzero 4th powers.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =16a(9) =17a(10) =18a(11) =19a(12) =20a(13) =21a(14) =22a(15) =32a(16) =33a(17) =34a(18) =35a(19) =36a(20) =37a(21) =48a(22) =49a(23) =50a(24) =51a(25) =52a(26) =64a(27) =65a(28) =66a(29) =67