%I #7 Jun 21 2021 02:48:13
%S 1,2,3,4,5,6,21,22,23,24,25,26,27,42,43,44,45,46,47,48,60,61,62,80,81,
%T 82,83,112,113,114,115,116,117,118,133,134,135,136,137,138,139,150,
%U 151,152,153,170,171,172,173,174,190,191,192,193
%N Numbers whose base-7 and base-10 expansions have the same digit sum.
%K nonn,base
%O 1,2
%A _Clark Kimberling_