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%I #6 Jun 12 2015 08:38:56
%S 2,1,3,4,5,6,7,8,11,9,10,13,12,17,14,19,15,23,16,18,21,20,29,22,31,24,
%T 37,25,26,41,27,28,43,30,47,32,34,33,35,36,53,38,59,39,40,61,42,44,67,
%U 45,46,71,48,73,49,50,52,51,54,79,55,56,83,57,58,89,60,65,62,64,63,97
%N Terms of EKG sequence A064413 that are divisible by 3, divided by 3.
%C This is a permutation of the natural numbers.
%K nonn
%O 1,1
%A _Thomas Ordowski_, Jan 31 2009
%E Definition clarified by _N. J. A. Sloane_, Feb 02 2009
%E Extended by _R. J. Mathar_, Apr 04 2009