%I A013949
%S A013949 1,2,2,1,1,2,1,2,2,1,2,1,1,2,2,1,1,2,2,1,1,2,1,2,2,1,1,2,1,2,2,1,2,1,1,
%T A013949 2,1,2,2,1,2,1,1,2,2,1,1,2,2,1,2,1,1,2,2,1,1,2,2,1,1,2,1,2,2,1,1,2,2,1,
%U A013949 1,2,2,1,1,2,1,2,2,1,1,2,1,2,2,1,2,1,1,2,1,2,2,1,1,2,1,2,2,1,1,2,1,2,2
%N A013949 Start with 1, apply 1->12, 21->21, 22->21, 2->2 (for final 2), take limit.
%Y A013949 Sequence in context: A143331 A167677 A074293 this_sequence A078880 A000002 
               A074295
%Y A013949 Adjacent sequences: A013946 A013947 A013948 this_sequence A013950 A013951 
               A013952
%K A013949 nonn,easy
%O A013949 1,2
%A A013949 Clark Kimberling (ck6(AT)evansville.edu)
%E A013949 More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 
               20 2003