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 A242081 Nim sequence of game on n counters whose legal moves are removing some number of counters in A242079. 0

%I

%S 0,1,0,1,2,0,1,0,1,2,0,1,2,0,1,0,1,2,0,1,0,1,2,0,1,2,0,1,2,0,1,0,1,2,

%T 0,1,0,1,2,0,1,2,0,1,0,1,2,0,1,0,1,2,0,1,2,0,1,2,0,1,0,1,2,0,1,0,1,2,

%U 0,1,2,0,1,2,0,1,0,1,2,0,1,0,1,2,0,1,2,0,1,0,1,2,0,1,0,1,2,0,1,2

%N Nim sequence of game on n counters whose legal moves are removing some number of counters in A242079.

%C For all n, a(n)=0, a(n)=1, or a(n)=2.

%C For all n, a(n)=0 if and only if a(n+1)=1.

%C This sequence is aperiodic if and only if A242079 is infinite.

%D E. R. Berlekamp, J. H. Conway and R. K. Guy, "Winning Ways", pp. 83-86

%H N. Fox, <a href="http://vimeo.com/93540244">Aperiodic Subtraction Games</a>, Talk given at the Rutgers Experimental Mathematics Seminar, May 01 2014.

%Y Cf. A242079.

%K nonn

%O 0,5

%A _Nathan Fox_, May 03 2014

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Last modified February 21 02:02 EST 2020. Contains 332086 sequences. (Running on oeis4.)