

A086476


Primes p such that 32p+1 and (p1)/32 are both prime.


3



1889, 8609, 11489, 25889, 32609, 46049, 67169, 98849, 99809, 107873, 120929, 124193, 128033, 139169, 142433, 157793, 167393, 168353, 196193, 208673, 210209, 241313, 288929, 295073, 308129, 311009, 324449, 354209, 377633, 396833, 403553
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..31.


EXAMPLE

1889 is a member as (18891)/32 = 59 and 32*1889 + 1= 60449 are both prime.


MATHEMATICA

Prime[ Select[ Range[37063], PrimeQ[(Prime[ # ]  1)/2^5] && PrimeQ[2^5Prime[ # ] + 1] & ]]
Select[Prime[Range[35000]], And@@PrimeQ[{32#+1, (#1)/32}]&] (* Harvey P. Dale, Jan 23 2013 *)


CROSSREFS

Cf. A085957, A085958, A086477, A086478.
Sequence in context: A206746 A106764 A157486 * A279621 A168226 A151721
Adjacent sequences: A086473 A086474 A086475 * A086477 A086478 A086479


KEYWORD

nonn


AUTHOR

Amarnath Murthy and Jason Earls, Jul 22 2003


EXTENSIONS

Edited and extended by Robert G. Wilson v, Jul 26 2003


STATUS

approved



