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Search: id:A004445
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| 4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11, 20, 21, 22, 23, 16, 17, 18, 19, 28, 29, 30, 31, 24, 25, 26, 27, 36, 37, 38, 39, 32, 33, 34, 35, 44, 45, 46, 47, 40, 41, 42, 43, 52, 53, 54, 55, 48, 49, 50, 51, 60, 61
(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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G.f.: [4-3x-4x^4+5x^5]/[(1-x)^2(1+x^4)]. - R. Stephan, Apr 24 2004
a(n) = n + 4(-1)^[n/4] - Mitchell Harris, Jan 10 2005
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CROSSREFS
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Sequence in context: A116962 A023846 A046345 this_sequence A114546 A067471 A102691
Adjacent sequences: A004442 A004443 A004444 this_sequence A004446 A004447 A004448
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KEYWORD
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nonn
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AUTHOR
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njas
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