A228454 Gap g such that k*2^n-1 , k*2^n-1+g , k*2^n-1+2*g or k*2^n-1-g , k*2^n-1 , k*2^n-1+g are consecutive primes in arithmetic progression for the smallest prime k.

2, 12, 6, 6, 6, 6, 24, 6, 6, 12, 6, 30, 18, 6, 18, 6, 30, 6, 6, 36, 6, 18, 36, 12, 6, 6, 6, 6, 6, 72, 6, 6, 6, 6, 6, 6, 18, 6, 6, 60, 6, 12, 6, 12, 18, 6, 18, 6, 30, 30, 60, 48, 78, 36, 54, 78, 36, 6, 6, 54, 6, 54, 12, 78, 6, 108, 108, 30, 6, 60, 24, 48, 18, 6, 42

Offset: 1

Author

Pierre CAMI, Oct 27 2013

Keywords

• nonn

Comments

Primes k in A228452.

Links

• Pierre CAMI, Table of n, a(n) for n = 1..350

Crossrefs

Cf. A228452.