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Nim-value of 0 for Couples-are-Forever occurs for these heap sizes.
0

%I #9 Mar 07 2020 21:21:16

%S 1,2,5,13,21,31,47,73,99,125,151,177,315,409

%N Nim-value of 0 for Couples-are-Forever occurs for these heap sizes.

%H I. Caines et al., <a href="http://www.jstor.org/stable/2589561">Periods in taking and splitting games</a>, Amer. Math. Monthly, 106 (1999), 359-361.

%K nonn,more

%O 0,2

%A _N. J. A. Sloane_