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%I #16 Apr 24 2021 01:59:45
%S 170,426,554,618,650,666,674,678,680,681,683,686,698,746,938,1194,
%T 1450,1578,1642,1674,1690,1698,1702,1704,1705,1707,1710,1722,1770,
%U 1962,2090,2154,2186,2202,2210,2214,2216,2217,2219
%N Numbers having four 2's in base 4.
%Y Cf. A007090.
%K nonn,base
%O 1,1
%A _Clark Kimberling_