login
Numbers whose base-4 representation contains exactly one 1 and no 3's.
0

%I #11 May 21 2023 12:27:37

%S 1,4,6,9,16,18,24,26,33,36,38,41,64,66,72,74,96,98,104,106,129,132,

%T 134,137,144,146,152,154,161,164,166,169,256,258,264,266,288,290,296,

%U 298,384,386,392,394,416,418,424,426,513,516,518

%N Numbers whose base-4 representation contains exactly one 1 and no 3's.

%Y Cf. A007090.

%K nonn,base

%O 1,2

%A _Clark Kimberling_