OFFSET
1,2
COMMENTS
The only primes in this sequence below primepi(10^8) are 2, 3 and 4189897.
prime(5812974437) - 5812974437 = 2^37. - Giovanni Resta, Apr 10 2013
a(9) > 1.4*10^16, if it exists. - Chai Wah Wu, Apr 24 2018
LINKS
Re: 2^k - prime(p) or prime(p) - 2^k ?, SeqFan mailing list, Apr 10 2013
PROG
(PARI) n=0; forprime(p=1, 10^8, n++; (t=p-n)==1<<valuation(t, 2)&print1(n", "))
CROSSREFS
KEYWORD
nonn,more
AUTHOR
M. F. Hasler, Apr 10 2013
EXTENSIONS
a(8) from Giovanni Resta, Apr 10 2013
STATUS
approved