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A004447 Nimsum n + 6. 0
6, 7, 4, 5, 2, 3, 0, 1, 14, 15, 12, 13, 10, 11, 8, 9, 22, 23, 20, 21, 18, 19, 16, 17, 30, 31, 28, 29, 26, 27, 24, 25, 38, 39, 36, 37, 34, 35, 32, 33, 46, 47, 44, 45, 42, 43, 40, 41, 54, 55, 52, 53, 50, 51, 48, 49, 62, 63 (list; graph; refs; listen; history; internal format)
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 + 2(-1)^[n/2] + 4(-1)^[n/4] - Mitchell Harris, Jan 10 2005

CROSSREFS

Sequence in context: A195776 A092678 A019932 * A005351 A098882 A019616

Adjacent sequences:  A004444 A004445 A004446 * A004448 A004449 A004450

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 14:37 EST 2012. Contains 205822 sequences.