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A004448 Nimsum n + 7. +0
1
7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8, 23, 22, 21, 20, 19, 18, 17, 16, 31, 30, 29, 28, 27, 26, 25, 24, 39, 38, 37, 36, 35, 34, 33, 32, 47, 46, 45, 44, 43, 42, 41, 40, 55, 54, 53, 52, 51, 50, 49, 48, 63, 62 (list; graph; listen)
OFFSET

0,1

REFERENCES

E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982, see p. 60.

J. H. Conway, On Numbers and Games. Academic Press, NY, 1976, pp. 51-53.

LINKS

Index entries for sequences related to Nim-sums

FORMULA

a(n) = n + (-1)^n + 2(-1)^[n/2] + 4(-1)^[n/4] - Mitchell Harris, Jan 10 2005

CROSSREFS

Sequence in context: A022963 A023449 A031098 this_sequence A031099 A055118 A132671

Adjacent sequences: A004445 A004446 A004447 this_sequence A004449 A004450 A004451

KEYWORD

nonn

AUTHOR

njas

page 1

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


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