%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_