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A108280
Consider primes p and q such that p = 2^k + 27 and q = 2^(k+1) + 27 for some k; sequence gives values of p.
1
29, 43, 8219, 1099511627803, 10889035741470030830827987437816582766619
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..5.
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.
A108293
.
Sequence in context:
A042973
A323628
A020997
*
A374009
A248429
A077782
Adjacent sequences:
A108277
A108278
A108279
*
A108281
A108282
A108283
KEYWORD
nonn
AUTHOR
Cino Hilliard
, Jun 29 2005
STATUS
approved
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Last modified August 19 07:08 EDT 2024. Contains 375284 sequences. (Running on oeis4.)