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%I #6 Feb 05 2023 18:04:46
%S 22,24,26,71,74,77,125,128,131,179,182,185,196,199,202,205,208,211,
%T 214,217,220,223,226,229,232,233,235,236,238,239,241,244,247,287,290,
%U 293,354,358,362,426,430,434,498,502,506,570,574
%N Position of n-th 4 in A030588.
%t Position[Flatten[Table[IntegerDigits[2n-1,6],{n,200}]],4]//Flatten (* _Harvey P. Dale_, Feb 05 2023 *)
%K nonn
%O 1,1
%A _Clark Kimberling_
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