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Search: a108265 -id:a108265
Displaying 1-1 of 1 result found. page 1
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A108264 Consider primes p and q such that p = 2^k + 9 and q = 2^(k+1) + 9 for some k; sequence gives values of p. +10
1
11, 13, 41, 73, 521 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
No additional terms up to k=5000. - Harvey P. Dale, Mar 08 2015
LINKS
MATHEMATICA
2^#+9&/@(Flatten[Position[Partition[If[PrimeQ[#], 1, 0]&/@(2^Range[10]+ 9), 2, 1], {1, 1}]]) (* Harvey P. Dale, Mar 08 2015 *)
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
Cf. A108265.
KEYWORD
nonn
AUTHOR
Cino Hilliard, Jun 29 2005
STATUS
approved
page 1

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Last modified August 29 08:01 EDT 2024. Contains 375510 sequences. (Running on oeis4.)