Sum of distinct nonzero sixth powers.

Terms

a(0) =1a(1) =64a(2) =65a(3) =729a(4) =730a(5) =793a(6) =794a(7) =4096a(8) =4097a(9) =4160a(10) =4161a(11) =4825a(12) =4826a(13) =4889a(14) =4890a(15) =15625a(16) =15626a(17) =15689a(18) =15690a(19) =16354a(20) =16355a(21) =16418a(22) =16419a(23) =19721a(24) =19722a(25) =19785a(26) =19786a(27) =20450a(28) =20451a(29) =20514