A165888 Primes arising in A126938.

5, 13, 31, 61, 103, 139, 157, 181, 211, 277, 349, 373, 409, 463, 547, 613, 631, 691, 811, 937, 1021, 1069, 1129, 1201, 1279, 1399, 1549, 1663, 1723, 1753, 1873, 1993, 2089, 2281, 2467, 2617, 2707, 2749, 2917, 3163, 3301, 3457, 3607, 3691, 3793, 3877, 3919

Offset: 1

Author

Zak Seidov, Sep 29 2009

Keywords

• nonn

Crossrefs

Cf. A126938.

Formula

a(n)=(A126938(n)+A126938(n+1))/2.