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Numbers whose base-4 representation contains exactly one 2 and one 3.
0

%I #8 Apr 22 2023 20:32:36

%S 11,14,27,30,35,39,44,45,50,54,56,57,75,78,91,94,99,103,108,109,114,

%T 118,120,121,131,135,140,141,147,151,156,157,176,177,180,181,194,198,

%U 200,201,210,214,216,217,224,225,228,229,267,270

%N Numbers whose base-4 representation contains exactly one 2 and one 3.

%Y Cf. A007090.

%K nonn,base

%O 1,1

%A _Clark Kimberling_