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A125913
Sprague-Grundy values for octal game .144.
0
1, 0, 0, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 1, 1, 1
OFFSET
1,5
COMMENTS
The sequence is eventually periodic with period 10. The last exception is at n=3.
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, 0}, LinearRecurrence[{1, -1, 1, -1, 1, -1, 1, -1, 1}, {1, 2, 2, 2, 2, 4, 4, 1, 1}, 100]] (* Ray Chandler, Aug 26 2015 *)
CROSSREFS
Sequence in context: A303637 A155904 A241514 * A122386 A051464 A375485
KEYWORD
nonn
AUTHOR
Richard Sabey, Jan 24 2007
EXTENSIONS
Extended by Ray Chandler, Aug 26 2015
STATUS
approved