OFFSET
1,1
EXAMPLE
163, 163+4 = 167, 163+16 = 179, 163+64 = 227, 163+256 = 419, 163+1024 = 1187, 163+4096 = 4259, 163+16384 = 16547, 163+65536 = 65699 are all primes; the smallest such a 9-chain of primes is {163, 167, 178, 227, 419, 1187, 4259, 16547, 65699}
MATHEMATICA
With[{c=4^Range[8]}, Select[Prime[Range[500000]], And@@PrimeQ[#+c]&]] (* Harvey P. Dale, May 22 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Michel Marcus, Dec 22 2013
STATUS
approved