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A071434 Sprague-Grundy values for octal game .1377. +0
3
1, 1, 2, 2, 3, 3, 1, 1, 4, 4, 3, 3, 2, 2, 1, 1, 4, 4, 2, 2, 6, 6, 4, 4, 1, 1, 2, 2, 7, 7, 1, 1, 4, 4, 3, 3, 2, 2, 1, 1, 4, 4, 6, 6, 7, 7, 4, 4, 1, 1, 2, 2, 8, 8, 5, 5, 4, 4, 7, 7, 2, 2, 1, 1, 8, 8, 6, 6, 7, 7, 4, 4, 1, 1, 2, 2, 3, 3, 1, 1, 4, 4, 7, 7, 2, 2, 1, 1, 8, 8, 2, 2, 7, 7, 4, 4, 1, 1, 2, 2, 8, 8 (list; graph; listen)
OFFSET

1,3

COMMENT

Octal games .074-.077 have values a(n-1). Octal games .440-.443 and .460-.463 have values a(n-2).

Sequence is eventually periodic with period 24. The last exception is at n=140.

REFERENCES

E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4, pg 102.

LINKS

Achim Flammenkamp, Octal games

FORMULA

a(2n-1)=a(2n)=A002186(n).

CROSSREFS

Sequence in context: A071859 A135695 A105899 this_sequence A128924 A116464 A125585

Adjacent sequences: A071431 A071432 A071433 this_sequence A071435 A071436 A071437

KEYWORD

nonn

AUTHOR

njas and Sue Pope (pope(AT)research.att.com), May 29 2002

EXTENSIONS

Edited and extended by Christian G. Bower (bowerc(AT)usa.net), Oct 22 2002

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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