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Search: id:A125918
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| A125918 |
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Sprague-Grundy values for octal game .154. |
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+0
1
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| 1, 1, 0, 1, 1, 2, 2, 2, 2, 2, 4, 1, 1, 1
(list; graph; listen)
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OFFSET
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1,6
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COMMENT
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The sequence is eventually periodic with period 11. The last exception is at n=3.
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REFERENCES
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E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4, p. 104.
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FORMULA
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a(n)=(1/605)*{184*(n mod 11)-91*[(n+1) mod 11]+19*[(n+2) mod 11]+19*[(n+3) mod 11]+19*[(n+4) mod 11]+19*[(n+5) mod 11]-36*[(n+6) mod 11]+19*[(n+7) mod 11]+19*[(n+8) mod 11]+19*[(n+9) mod 11]+19*[(n+10) mod 11]}-[C(n^2,n+2) mod 2], with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Oct 22 2008]
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CROSSREFS
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Sequence in context: A029116 A064770 A060467 this_sequence A083533 A076500 A060594
Adjacent sequences: A125915 A125916 A125917 this_sequence A125919 A125920 A125921
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KEYWORD
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nonn
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AUTHOR
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Richard Sabey (richardsabey(AT)hotmail.co.uk), Jan 24 2007
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