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A024902 Numbers n such that 7*n+4 is prime. 2
1, 7, 9, 15, 19, 21, 25, 27, 37, 39, 49, 55, 61, 69, 79, 81, 85, 87, 91, 97, 105, 115, 117, 129, 139, 141, 145, 147, 151, 157, 159, 169, 171, 175, 189, 205, 207, 211, 217, 225, 229, 231, 237, 247, 249, 255, 261, 267, 271, 285, 289, 295, 297, 301, 307, 319, 321, 327, 339, 349 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

PROG

(MAGMA) [ n: n in [1..400] | IsPrime(7*n+4) ];  [From Vincenzo Librandi, Nov 20 2010]

CROSSREFS

Sequence in context: A067873 A047522 A112072 * A111312 A158891 A087680

Adjacent sequences:  A024899 A024900 A024901 * A024903 A024904 A024905

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 20:38 EST 2012. Contains 205663 sequences.