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%I #13 May 21 2023 00:21:11
%S 3131,3151,3155,3251,3255,3275,3751,3755,3775,3875,15657,15658,15659,
%T 15661,15666,15671,15681,15706,15731,15757,15758,15759,15761,15766,
%U 15771,15777,15778,15779,15785,15790,15795,15801,15805,15826,15830,15851,15855,15881,15901
%N Numbers whose base-5 representation contains exactly three 0's and three 1's.
%Y Cf. A007091.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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