cp's OEIS Frontend

A037395 Numbers k such that every base-5 digit of k is a base-8 digit of k.

%I A037395 #17 Aug 05 2021 07:00:19
%S A037395 1,2,3,4,83,91,93,99,124,136,161,200,206,272,314,467,524,532,540,545,
%T A037395 546,549,609,643,656,672,680,705,706,708,770,771,774,775,776,781,784,
%U A037395 786,787,789,793,794,796,798,799,843,871,906
%N A037395 Numbers k such that every base-5 digit of k is a base-8 digit of k.
%H A037395 Reinhard Zumkeller, <a href="/A037395/b037395.txt">Table of n, a(n) for n = 1..10000</a>
%t A037395 Select[Range[1000],SubsetQ[IntegerDigits[#,8],IntegerDigits[#,5]]&] (* _Harvey P. Dale_, Oct 13 2015 *)
%o A037395 (Haskell)
%o A037395 import Data.List ((\\), nub)
%o A037395 a037395 n = a037395_list !! (n-1)
%o A037395 a037395_list = filter f [1..] where
%o A037395    f x = null $ nub (ds 5 x) \\ nub (ds 8 x)
%o A037395    ds b x = if x > 0 then d : ds b x' else []  where (x', d) = divMod x b
%o A037395 -- _Reinhard Zumkeller_, May 30 2013
%Y A037395 Cf. A007091, A007094.
%Y A037395 Cf. A037393, A037394, A037396, A037397.
%K A037395 nonn,base
%O A037395 1,2
%A A037395 _Clark Kimberling_