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Search: id:A108273
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| A108273 |
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Consider primes p and q such that p = 2^k + 21 and q = 2^(k+1) + 21 for some k; sequence gives values of q. |
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1
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OFFSET
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0,1
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COMMENT
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It appears that these values are merely conjectures. - N. J. A. Sloane (njas(AT)research.att.com), Jun 30 2005
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PROGRAM
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(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", ") ) ) }
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CROSSREFS
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Sequence in context: A036540 A141166 A139918 this_sequence A045223 A134222 A127023
Adjacent sequences: A108270 A108271 A108272 this_sequence A108274 A108275 A108276
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KEYWORD
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nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Jun 29 2005
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