%I #10 Jun 15 2019 21:48:32
%S 0,1,2,6,5,4,3,9,14,15,17,11,8,42,20,32,18,7,31,33,56,19,37,46,23,21,
%T 25,52,13,62,40,36,16,27,10,92,51,131,39,12,44,34,97,82,43,98,152,170,
%U 24,29,45,84,70,58,144,94,78,26,38,76,166,111,145,206,194
%N Numbers in the van Eck sequence A181391 in order of first appearance.
%H N. J. A. Sloane, <a href="/A171897/b171897.txt">Table of n, a(n) for n = 1..1702</a>
%Y Cf. A181391.
%K nonn
%O 1,3
%A _N. J. A. Sloane_, Oct 19 2010