

A101123


Numbers k for which 7*k + 11 is prime.


7



0, 6, 8, 14, 18, 20, 24, 26, 36, 38, 48, 54, 60, 68, 78, 80, 84, 86, 90, 96, 104, 114, 116, 128, 138, 140, 144, 146, 150, 156, 158, 168, 170, 174, 188, 204, 206, 210, 216, 224, 228, 230, 236, 246, 248, 254, 260, 266, 270, 284, 288, 294, 296, 300, 306, 318, 320
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OFFSET

1,2


COMMENTS

Note that 7 is the largest singledigit prime and 11 is the smallest twodigit prime.


LINKS



EXAMPLE

For k=6, 7*6 + 11 = 53 (prime).
For k=8, 7*8 + 11 = 67 (prime).
For k=14, 7*14 + 11 = 109 (prime).


MATHEMATICA

Select[Range[0, 500], PrimeQ[7#+11]&] (* Harvey P. Dale, Jun 05 2012 *)


PROG



CROSSREFS



KEYWORD

nonn


AUTHOR



EXTENSIONS



STATUS

approved



