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%I #13 Apr 13 2021 23:05:25
%S 1,5,7,25,26,27,28,29,30,31,35,40,45,51,55,76,80,101,105,125,126,127,
%T 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,
%U 145,146,147,148,149,150,151,152,153,154,155
%N Positive numbers k such that every base-2 digit of k is a base-5 digit of k.
%H Reinhard Zumkeller, <a href="/A037374/b037374.txt">Table of n, a(n) for n = 1..10000</a>
%o (Haskell)
%o import Data.List ((\\), nub)
%o a037374 n = a037374_list !! (n-1)
%o a037374_list = filter f [1..] where
%o f x = null $ nub (ds 2 x) \\ nub (ds 5 x)
%o ds b x = if x > 0 then d : ds b x' else [] where (x', d) = divMod x b
%o -- _Reinhard Zumkeller_, May 30 2013
%Y Cf. A037372, A037373, A037375, A037376, A037377, A037378, A037379.
%K nonn,base
%O 1,2
%A _Clark Kimberling_
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