A308340 Primes arising in A308334.

3, 3, 7, 5, 7, 7, 23, 29, 13, 11, 11, 11, 31, 29, 29, 31, 31, 31, 31, 23, 23, 29, 31, 31, 31, 29, 29, 31, 31, 59, 37, 37, 37, 41, 43, 43, 43, 43, 47, 47, 47, 47, 47, 47, 61, 53, 53, 53, 59, 59, 59, 59, 59, 61, 61, 127, 127, 127, 127, 127, 71, 127, 127, 71, 79

Offset: 1

Author

Rémy Sigrist, May 20 2019

Keywords

• nonn
• base

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A308334.

Programs

PARI

s=0; v=1; for (n=1, 65, s+=2^v; for (w=1, oo, if (!bittest(s,w) && isprime(o=bitor(v,w)), print1 (o ", "); v=w; break)))

Formula

a(n) = A308334(n) OR A308334(n+1) (where OR denotes the binary OR operator).