%I #4 Mar 30 2012 18:57:03
%S 4,1,2,3,5,6,7,8,9,10,12,14,13,17,11,15,19,16,22,25,27,20,24,29,21,18,
%T 26,32,23,36,28,40,31,30,43,34,46,35,49,37,52,42,38,33,55,45,44,41,39,
%U 58,50,63,53,66,57,54,48,69,59,74,62,60,51
%N n-th distinct number to appear in A055174.; also the n-th to appear in A055192.
%C Conjecture: this sequence is a permutation of the positive integers.
%K nonn
%O 1,1
%A _Clark Kimberling_, Apr 27 2000