A125920 Sprague-Grundy values for octal game .176.

1, 1, 0, 2, 2, 3, 4, 4, 1, 1, 6, 2, 2, 3, 4, 4, 1, 1, 6, 6, 3, 3, 2, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4

Offset

1,4

Comments

The sequence is eventually periodic with period 8. The last exception is at n=23.

References

E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4, p. 104.

Links

Table of n, a(n) for n=1..103.

Index entries for linear recurrences with constant coefficients, signature (1, -1, 1, -1, 1, -1, 1).

Mathematica

Join[{1, 1, 0, 2, 2, 3, 4, 4, 1, 1, 6, 2, 2, 3, 4, 4, 1, 1, 6, 6, 3, 3, 2}, LinearRecurrence[{1, -1, 1, -1, 1, -1, 1}, {4, 1, 1, 6, 6, 3, 3}, 80]] (* Ray Chandler, Aug 25 2015 *)

Crossrefs

Sequence in context: A228754 A171830 A071506 * A176360 A185068 A078664

Adjacent sequences: A125917 A125918 A125919 * A125921 A125922 A125923

Keyword

nonn

Author

Richard Sabey, Jan 24 2007

Extensions

Extended by Ray Chandler, Aug 25 2015

Status

approved