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%I #13 May 19 2023 20:07:22
%S 157,161,181,281,657,661,681,757,761,777,785,788,789,792,797,801,805,
%T 808,809,816,821,832,836,857,861,881,901,905,908,909,916,921,956,981,
%U 1032,1036,1056,1157,1161,1181,1281,1381,1401
%N Numbers whose base-5 representation contains exactly three 1's and one 2.
%Y Cf. A007091.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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