A071464 - OEIS

%I #8 Jan 26 2017 02:55:00

%S 1,0,2,2,1,0,4,4,1,2,2,0,1,4,4,6,1,7,7,0,1,2,2,6,1,4,4,8,1,2,7,8,1,0,

%T 7,2,6,8,1,4,9,8,1,2,6,0,1,4,6,2,1,8,9,0,1,6,2,2,7,0,1,8,3,2,1,4,4,8,

%U 9,2,7,8,1,0,9,2,2,6,4,4,1,8,3,2,1,0,4

%N Sprague-Grundy values for octal games .127 and .1271.

%C Sequence is eventually periodic with period 4. The last exception is at n=46577 [Gangolli and Plambeck]. - _Eric M. Schmidt_, Jan 22 2017

%D E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4.

%H Eric M. Schmidt, <a href="/A071464/b071464.txt">Table of n, a(n) for n = 1..10000</a>

%H A. Gangolli and T. Plambeck, <a href="https://doi.org/10.1007/BF01254294">A Note on Periodicity in Some Octal Games</a>, International Journal of Game Theory, Vol. 18 (1989), pp. 311-320.

%K nonn

%O 1,3

%A _N. J. A. Sloane_ and _Sue Pope_, May 29 2002

%E Edited and extended by _Eric M. Schmidt_, Jan 22 2017