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%I #9 Jan 11 2019 04:25:04
%S 4,6,1,10,13,11,2,14,24,21,36,15,9,7,3,16,53,26,27,30,33,19,32,20,59,
%T 22,50,29,35,28,64,45,49,40,71,51,58,107,55,93,57,23,47,41,18,111,60,
%U 37,106,46,82,119,86,91,44,72,25,39,67,74,61,65,78,154,69,204,89,169,167,105,198
%N Position at which n first appears in the continued fraction expansion of Pi.
%C This is presumably a permutation of the positive integers, and is the inverse permutation to A154883.
%H R. J. Mathar, <a href="/A322778/b322778.txt">Table of n, a(n) for n = 1..292</a>, Jan 11 2019
%Y Cf. A001203, A154883.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jan 04 2019