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A031258 Position of n-th 4 in A031253. 0

%I

%S 8,18,19,21,31,46,54,57,60,61,76,91,93,96,106,121,129,132,135,136,137,

%T 140,143,146,149,151,152,155,158,161,164,166,167,168,170,171,184,204,

%U 215,219,223,224,244,264,267,271,284,304,315

%N Position of n-th 4 in A031253.

%K nonn

%O 1,1

%A _Clark Kimberling_

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Last modified October 25 01:40 EDT 2021. Contains 348233 sequences. (Running on oeis4.)