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Numbers having one 7 in base 8.
0

%I #11 Apr 23 2021 05:26:47

%S 7,15,23,31,39,47,55,56,57,58,59,60,61,62,71,79,87,95,103,111,119,120,

%T 121,122,123,124,125,126,135,143,151,159,167,175,183,184,185,186,187,

%U 188,189,190,199,207,215,223,231,239,247,248

%N Numbers having one 7 in base 8.

%Y Cf. A007094.

%K nonn,base

%O 1,1

%A _Clark Kimberling_