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Search: id:A002643
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| A002643 |
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Numbers n such that (n^2 + n + 1)/19 is prime.
(Formerly M4340 N1817)
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+0
1
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| 7, 11, 26, 45, 83, 125, 140, 182, 197, 201, 216, 239, 258, 311, 330, 353, 444, 467, 482, 486, 524, 539, 558, 600, 752, 771, 843, 881, 885, 923, 980, 999, 1071, 1113
(list; graph; listen)
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OFFSET
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1,1
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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, Binomial Factorisations, Vols. 1-9, Hodgson, London, 1923-1929; see Vol. 1, pp. 245-259.
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CROSSREFS
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Sequence in context: A027830 A134043 A102373 this_sequence A039287 A045222 A002810
Adjacent sequences: A002640 A002641 A002642 this_sequence A002644 A002645 A002646
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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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