%I #16 Apr 23 2021 22:15:49
%S 1,49,50,56,343,344,350,351,392,393,399,2401,2402,2408,2409,2450,2451,
%T 2457,2458,2744,2745,2751,2752,2793,2794,2800,16807,16808,16814,16815,
%U 16856,16857,16863,16864,17150,17151,17157,17158
%N Positive numbers having the same set of digits in base 2 and base 7.
%H John Cerkan, <a href="/A037412/b037412.txt">Table of n, a(n) for n = 1..10000</a>
%o (PARI) isok(n) = Set(digits(n, 2)) == Set(digits(n, 7)); \\ _John Cerkan_, Jan 13 2017
%Y Subset of A033044.
%K nonn,base
%O 1,2
%A _Clark Kimberling_
%E Name edited by _John Cerkan_, Jan 14 2017