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Search: id:A004444
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| 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12, 19, 18, 17, 16, 23, 22, 21, 20, 27, 26, 25, 24, 31, 30, 29, 28, 35, 34, 33, 32, 39, 38, 37, 36, 43, 42, 41, 40, 47, 46, 45, 44, 51, 50, 49, 48, 55, 54, 53, 52, 59, 58
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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The same as A120634 except for first 3 terms. - Pietro Battiston (toobaz(AT)email.it), Jan 19 2008
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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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G.f. (4x^4-x^3-x^2-x+3)/((x-1)^2*(x+1)*(x^2+1)). - Ralf Stephan (ralf(AT)ark.in-berlin.de), Nov 01 2003
a(n) = n + (-1)^n + 2(-1)^[n/2] - Mitchell Harris, Jan 10 2005
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CROSSREFS
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Sequence in context: A098825 A111460 A035327 this_sequence A085771 A111106 A113081
Adjacent sequences: A004441 A004442 A004443 this_sequence A004445 A004446 A004447
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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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