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Numbers whose base-11 representation has the same nonzero number of 2's and 7's.
0

%I #10 Jun 30 2021 04:31:57

%S 29,79,150,200,249,260,282,293,304,315,319,320,322,323,324,325,327,

%T 328,329,337,348,359,392,442,513,563,634,684,755,805,849,860,869,870,

%U 872,873,874,875,877,878,879,882,893,904,915,937,948,959,997,1047

%N Numbers whose base-11 representation has the same nonzero number of 2's and 7's.

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_