Ternary Thue-Morse sequence: closed under a->abc, b->ac, c->b.
3, 2, 1, 3, 1, 2, 3, 2, 1, 2, 3, 1, 3, 2, 1, 3, 1, 2, 3, 1, 3, 2, 1, 2, 3, 2, 1, 3, 1, 2, 3, 2, 1, 2
1 seqfan posts
Mon Dec 29 23:02:34 CET 2008 [seqfan] What is the right way to make changes in somebody's comment?