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%I #10 Feb 12 2021 18:10:53
%S 4,23,33,34,41,59,76,89,90,115,134,162,167,194,197,230,261,263,267,
%T 294,305,341,344,348,350,378,436,437,444,483,543,545,550,610,648,656,
%U 664,669,677,727,736,738,743,792,809,816,818,883
%N Numbers k such that A030707(k) = 4.
%Y Cf. A030707.
%K nonn
%O 1,1
%A _Clark Kimberling_
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