%I M0403 #16 Nov 09 2020 00:01:02
%S 1,2,3,1,2,1,3,2,3,1,3,2,1,2,3,1,2,1,3,2,1,2,3,1,3,2,3,1,2,1,3,2,3,1,
%T 3,2,1,2,3,1,3,2,3,1,2,1,3,2,1,2,3,1,2,1,3,2,3,1,3,2,1,2,3,1,2,1,3,2,
%U 1,2,3,1,3,2,3,1,2,1,3
%N A squarefree ternary sequence.
%D G. Siebert, personal communication.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H Sean A. Irvine, <a href="/A005680/b005680.txt">Table of n, a(n) for n = 1..10000</a>
%H G. Siebert, <a href="/A001285/a001285_1.pdf">Letter to N. J. A. Sloane, Sept. 1977</a>
%Y Cf. A036582 (apparently essentially the same sequence).
%K nonn
%O 1,2
%A _N. J. A. Sloane_