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%I #12 May 19 2023 19:58:25
%S 31,131,151,155,157,159,161,171,181,231,281,531,631,651,655,657,659,
%T 661,671,681,731,751,755,757,759,761,771,775,777,779,785,787,789,795,
%U 797,799,801,805,807,809,811,821,851,855,857,859
%N Numbers whose base-5 representation contains exactly three 1's and no 3's.
%Y Cf. A007091.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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