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A108271 Consider primes p and q such that p = 2^k + 15 and q = 2^(k+1) + 15 for some k; sequence gives values of q. 0
19, 23, 31, 47, 79, 2063, 4111, 65551, 8388623 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

It appears that these values are merely conjectures. - N. J. A. Sloane (njas(AT)research.att.com), Jun 30 2005

PROG

(PARI) g(m, n, b) = { for(x=0, n, y=m+b^x+b%2; z=m+b^(x+1)+b%2; if(isprime(y)&isprime(z), print1(y", ") ) ) }

CROSSREFS

Sequence in context: A168670 A019360 A007639 * A060269 A075585 A052030

Adjacent sequences:  A108268 A108269 A108270 * A108272 A108273 A108274

KEYWORD

nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Jun 29 2005

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.