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%I A045247 #11 May 19 2023 19:57:59
%S A045247 3968,4168,4208,4216,5168,5208,5216,5408,5416,5456,10168,10208,10216,
%T A045247 10408,10416,10456,11408,11416,11456,11656,16468,16668,16708,16716,
%U A045247 17668,17708,17716,17908,17916,17956,18968,19168
%N A045247 Numbers whose base-5 representation contains exactly three 1's and three 3's.
%Y A045247 Cf. A007091.
%K A045247 nonn,base
%O A045247 1,1
%A A045247 _Clark Kimberling_

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