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A153319 Primes such that 6*p-7 is not prime. +0
1
7, 17, 37, 47, 67, 89, 97, 103, 107, 113, 127, 131, 137, 151, 157, 167, 179, 181, 191, 197, 223, 227, 233, 257, 277, 281, 283, 293, 307, 311, 317, 337, 347, 359, 367, 373, 383, 389, 397, 419, 421, 439, 443, 457, 461, 463, 467, 479, 487, 499, 509, 523, 541 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

lst={}; Do[p=Prime[n]; If[ !PrimeQ[6*p-7], AppendTo[lst, p]], {n, 6!}]; lst

CROSSREFS

Cf. A153134, A153135, A153245

Sequence in context: A090652 A062675 A106095 this_sequence A030432 A090147 A155007

Adjacent sequences: A153316 A153317 A153318 this_sequence A153320 A153321 A153322

KEYWORD

nonn

AUTHOR

Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 23 2008, Jan 02 2009

page 1

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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