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A002971
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Numbers n such that 4*n^2 + 25 is prime.
(Formerly M0587)
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1
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1, 2, 3, 4, 8, 9, 11, 12, 13, 14, 16, 17, 18, 21, 23, 26, 29, 34, 36, 37, 38, 47, 48, 49, 51, 53, 54, 56, 62, 63, 66, 67, 68, 69, 73, 74, 77, 79, 82, 83, 91, 99, 101, 102, 103, 107, 108, 114, 116, 118, 122, 131, 134, 141, 142, 147, 148, 151, 154, 156, 157, 158, 159, 164
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| E. Kogbetliantz and A. Krikorian, Handbook of First Complex Prime Numbers, Gordon and Breach, NY, 1971, p. 1.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| T. D. Noe, Table of n, a(n) for n = 1..1000
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PROG
| (MAGMA)[n: n in [0..600] |IsPrime(4*n^2+25)] [From V.Librandi, Nov 21 2010]
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CROSSREFS
| Sequence in context: A079279 A045577 A111020 * A157318 A158031 A139461
Adjacent sequences: A002968 A002969 A002970 * A002972 A002973 A002974
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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