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Search: id:A002347
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| A002347 |
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Consider all primes of form p = (x^2 + 11y^2 )/4; sequence gives values of y.
(Formerly M0151 N0061)
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+0
3
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| 1, 1, 2, 1, 3, 3, 2, 4, 1, 3, 5, 5, 3, 6, 1, 7, 3, 6, 5, 3, 7, 6, 9, 9, 5, 8, 4, 10, 9, 7, 3, 11, 3, 9, 1, 11, 12, 8, 10, 12, 9, 11, 5, 9, 13, 3, 6, 1, 13, 3, 2, 10, 8, 15, 15, 7, 9, 13, 1, 15, 14, 15, 15, 5, 3, 15, 12, 4, 17, 9, 15, 11, 15, 14, 5, 6, 18, 2, 16, 7, 13, 17, 11, 18
(list; graph; listen)
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OFFSET
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3,3
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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).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
A. J. C. Cunningham, Quadratic Partitions. Hodgson, London, 1904, p. 1.
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. A002346, A056874.
Adjacent sequences: A002344 A002345 A002346 this_sequence A002348 A002349 A002350
Sequence in context: A123143 A128133 A032434 this_sequence A006642 A094435 A133341
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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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