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Search: id:A006705
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| A006705 |
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Solution to Pellian: y such that x^2 - n y^2 = +- 1, +- 4.
(Formerly M0398)
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+0
4
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| 0, 1, 1, 0, 1, 2, 3, 1, 0, 1, 3, 2, 1, 4, 1, 0, 1, 4, 39, 1, 1, 42, 5, 1, 0, 1, 5, 3, 13, 2, 273, 1, 4, 6, 1, 0, 1, 6, 4, 1, 5, 2, 531, 3, 1, 3588, 1, 1, 0, 1, 7, 5, 1, 66, 12, 2, 20, 13, 69, 1, 5, 8, 1, 0, 1
(list; graph; listen)
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OFFSET
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1,6
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
A. Cayley, Report of a committee appointed for the purpose of carrying on the tables connected with the Pellian equation ..., Collected Mathematical Papers. Vols. 1-13, Cambridge Univ. Press, London, 1889-1897, Vol. 13, pp. 430-443.
C. F. Degen, Canon Pellianus. Hafniae, Copenhagen, 1817.
D. H. Lehmer, Guide to Tables in the Theory of Numbers. Bulletin No. 105, National Research Council, Washington, DC, 1941, p. 55.
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CROSSREFS
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Cf. A006704.
Sequence in context: A079343 A004566 A050074 this_sequence A031269 A006703 A133623
Adjacent sequences: A006702 A006703 A006704 this_sequence A006706 A006707 A006708
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KEYWORD
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nonn,easy,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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