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A125915
Sprague-Grundy values for octal game .147.
0
1, 0, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1, 1, 2, 2, 2, 4, 4, 1, 1
OFFSET
1,4
COMMENTS
Octal games .544, .545, .546 and .547 also have values a(n).
The sequence is eventually periodic with period 8. The last exception is at n=2.
REFERENCES
E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4, p. 104.
MATHEMATICA
Join[{1, 0}, LinearRecurrence[{0, 0, 0, 0, 0, 0, 0, 1}, {1, 2, 2, 2, 4, 4, 1, 1}, 104]] (* Ray Chandler, Aug 25 2015 *)
CROSSREFS
Sequence in context: A228796 A155837 A096445 * A071472 A367120 A064135
KEYWORD
nonn
AUTHOR
Richard Sabey, Jan 24 2007
EXTENSIONS
Extended by Ray Chandler, Aug 25 2015
STATUS
approved