%I A006978 M2642
%S A006978 1,3,7,13,31,49,115,215,509,775,1805,3359,7985,12659,29655,54909,130759,
%T A006978 197581,460383,855793,2038675,3227319,7562237,14149127,33304077,
%U A006978 50625055,118279729,220060275,523730647,830325757,1942439431,3595423245
%N A006978 Cellular automaton with 000, 001, 010, 011, ..., 111 -> 0,1,1,1,0,1,1,
               0.
%D A006978 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006978 Marc LeBrun (mlb(AT)well.com), personal communication.
%H A006978 <a href="Sindx_Ce.html#cell">Index entries for sequences related to cellular 
               automata</a>
%H A006978 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Rule110.html">Rule 110</a>
%Y A006978 Cf. A070887, A117999.
%Y A006978 Sequence in context: A163418 A161218 A068679 this_sequence A060424 A119962 
               A110436
%Y A006978 Adjacent sequences: A006975 A006976 A006977 this_sequence A006979 A006980 
               A006981
%K A006978 nonn
%O A006978 1,2
%A A006978 N. J. A. Sloane (njas(AT)research.att.com).
%E A006978 More terms from Eric Weisstein (eric(AT)weisstein.com), Apr 11 2006