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A024905 Numbers n such that 7*n+1 is prime. 3
4, 6, 10, 16, 18, 28, 30, 34, 40, 48, 54, 60, 64, 66, 70, 78, 88, 90, 94, 96, 100, 106, 108, 118, 126, 130, 136, 138, 144, 150, 156, 166, 184, 186, 196, 204, 210, 214, 226, 228, 238, 244, 246, 268, 276, 286, 288, 298, 304, 306, 316, 324, 328, 330, 334, 340, 346, 348, 360, 364 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Select[Range[400], PrimeQ[7#+1]&] (*From Vladimir Joseph Stephan Orlovsky, Feb 25 2011*)

PROG

(MAGMA) [n: n in [1..10000] |IsPrime(7*n+1)] [From Vincenzo Librandi, Nov 20 2010]

CROSSREFS

Sequence in context: A186777 A028282 A200570 * A107305 A076529 A102768

Adjacent sequences:  A024902 A024903 A024904 * A024906 A024907 A024908

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 14 11:13 EST 2012. Contains 205618 sequences.