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A108259 Consider primes p and q such that p = 3^k + 2 and q = 3^(k+1) + 2 for some k; sequence gives values of p. +0
1
3, 5, 11, 29, 4782971 (list; graph; listen)
OFFSET

0,1

COMMENT

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

EXAMPLE

3^1 + 2 = 5, 3^2 + 2 = 11.

PROGRAM

(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(p", ") ) ) }

CROSSREFS

Sequence in context: A037152 A084748 A146243 this_sequence A093933 A165572 A095184

Adjacent sequences: A108256 A108257 A108258 this_sequence A108260 A108261 A108262

KEYWORD

nonn

AUTHOR

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

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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