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Search: id:A004447
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| 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; listen)
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OFFSET
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0,1
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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 p. 60.
J. H. Conway, On Numbers and Games. Academic Press, NY, 1976, pp. 51-53.
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LINKS
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Index entries for sequences related to Nim-sums
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FORMULA
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a(n) = n + 2(-1)^[n/2] + 4(-1)^[n/4] - Mitchell Harris, Jan 10 2005
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CROSSREFS
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Sequence in context: A097410 A092678 A019932 this_sequence A005351 A098882 A019616
Adjacent sequences: A004444 A004445 A004446 this_sequence A004448 A004449 A004450
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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