# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a284901 Showing 1-1 of 1 %I A284901 #8 Apr 27 2017 13:01:40 %S A284901 0,1,1,0,0,0,1,0,0,0,0,1,0,1,0,1,1,0,0,0,0,1,0,1,0,1,0,1,1,0,0,0,0,1, %T A284901 1,0,0,0,0,1,1,0,0,0,1,0,0,0,0,1,0,1,0,1,0,1,1,0,0,0,0,1,1,0,0,0,0,1, %U A284901 1,0,0,0,0,1,1,0,0,0,1,0,0,0,0,1,0,1 %N A284901 Fixed point of the morphism 0 -> 01, 1 -> 1000. %H A284901 Clark Kimberling, Table of n, a(n) for n = 1..10000 %H A284901 Index entries for sequences that are fixed points of mappings %e A284901 0 -> 01-> 011000 -> 0110001000010101 -> %t A284901 s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 0, 1, 1}}] &, {0}, 6] (* A284901 *) %t A284901 Flatten[Position[s, 0]] (* A284902 *) %t A284901 Flatten[Position[s, 1]] (* A284903 *) %Y A284901 Cf. A284902, A284903. %K A284901 nonn,easy %O A284901 1 %A A284901 _Clark Kimberling_, Apr 16 2017 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE