Numbers that are the sum of at most 3 nonzero 6th powers.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =64a(5) =65a(6) =66a(7) =128a(8) =129a(9) =192a(10) =729a(11) =730a(12) =731a(13) =793a(14) =794a(15) =857a(16) =1458a(17) =1459a(18) =1522a(19) =2187a(20) =4096a(21) =4097a(22) =4098a(23) =4160a(24) =4161a(25) =4224a(26) =4825a(27) =4826a(28) =4889a(29) =5554