%I #12 May 28 2023 22:20:35
%S 256,1026,1027,1032,1036,1056,1072,1152,1216,1536,1792,2049,2052,2064,
%T 2112,2304,3073,3076,3088,3136,3328,4106,4107,4110,4111,4130,4131,
%U 4136,4140,4146,4147,4152,4156,4226,4227,4232,4236
%N Numbers whose base-4 representation contains exactly four 0's and one 1.
%H Vincenzo Librandi, <a href="/A045034/b045034.txt">Table of n, a(n) for n = 1..5000</a>
%t Select[Range[20000], DigitCount[#, 4, 0] == 4 &&DigitCount[#, 4, 1] == 1 &] (* _Vincenzo Librandi_, Sep 23 2016 *)
%Y Cf. A007090.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
|