%I #8 Apr 24 2021 20:47:39

%S 20,101,164,173,180,181,183,184,185,186,187,188,191,200,209,218,227,

%T 236,263,344,425,506,587,668,749,830,893,902,909,910,912,913,914,915,

%U 916,917,920,929,938,947,956,965,992,1073,1154,1235

%N Numbers having two 2's in base 9.

%Y Cf. A007095.

%K nonn,base

%O 1,1

%A _Clark Kimberling_