OFFSET
1,1
COMMENTS
It is conjectured that the sequence is infinite.
This sequence is also the list of primes with k trits that are used in decomposition of 2*3^k into the sum of such two primes. k>=1.
LINKS
Lei Zhou, Table of n, a(n) for n = 1..10000
EXAMPLE
MATHEMATICA
p = 2; Table[While[p = NextPrime[p]; cp = 2*3^(Floor[Log[3, 2*p - 1]]) - p; !PrimeQ[cp]]; p, {n, 1, 56}]
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Lei Zhou, Nov 11 2016
STATUS
approved