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A163627 Numbers n such that 42n + 5 is prime. 0
0, 1, 2, 3, 4, 6, 9, 11, 12, 14, 16, 17, 18, 21, 22, 23, 24, 26, 28, 29, 31, 34, 37, 38, 43, 47, 49, 54, 56, 57, 58, 62, 64, 66, 67, 68, 69, 79, 81, 82, 83, 84, 86, 87, 88, 93, 97, 102, 104, 106, 109, 113, 114, 116, 117, 119, 121, 123, 126, 128, 131, 133, 136, 138, 139, 141 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

Dario Alpern, Factorization using the Elliptic Curve Method

EXAMPLE

If n=97 then 42n + 5 = 4079 (a prime).

PROG

(MAGMA) [n: n in [0..1000] |IsPrime(42*n + 5)] [From Vincenzo Librandi, Dec 02 2010]

CROSSREFS

Sequence in context: A046097 A175515 A132600 * A189887 A179970 A018431

Adjacent sequences:  A163624 A163625 A163626 * A163628 A163629 A163630

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 01 2009

EXTENSIONS

More terms from Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Mar 25 2010

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Last modified February 16 07:08 EST 2012. Contains 205872 sequences.