%I #1 Sep 29 2006 03:00:00
%S 1,7,13,37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,
%T 37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,37,79,
%U 103,37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,37,79,103,37
%N Start with 1 and repeatedly place the first digit at the end of the number and add 6.
%C After 3 steps the sequence enters a cycle of length 3.
%K base,nonn
%O 1,2
%A Luc Stevens (lms022(AT)yahoo.com), May 24 2006