Numbers that are the sum of at most 4 nonzero 6th powers.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =64a(6) =65a(7) =66a(8) =67a(9) =128a(10) =129a(11) =130a(12) =192a(13) =193a(14) =256a(15) =729a(16) =730a(17) =731a(18) =732a(19) =793a(20) =794a(21) =795a(22) =857a(23) =858a(24) =921a(25) =1458a(26) =1459a(27) =1460a(28) =1522a(29) =1523