1,12

Bemirps: primes that yield a different prime when turned upside down with reversals of both being two more different primes (see A048895).

Table of n, a(n) for n=1..15.

Chris Caldwell, Bemirp [From G. L. Honaker, Jr., Oct 01 2009]

111696081881 and 111696081883 twin primes

111969081881 and 111969081883 twin primes

188180696111 and 188180696113 twin primes

188180969111 and 188180969113 twin primes

so the least bemirp 111696081881 = a(12)

Cf. A048895.

Sequence in context: A233616 A095427 A038454 * A072718 A034652 A015402

Adjacent sequences: A122714 A122715 A122716 * A122718 A122719 A122720

base,nonn

Pierre CAMI, Sep 23 2006, Sep 25 2006

Edited by N. J. A. Sloane, Oct 05 2009

approved