A122717 Least prime P such that P is the least of bemirps of n digits and the bemirps are first of twin primes or 0 if no such primes exist.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 111696081881, 1061169181691, 0, 118181010160181

Offset

1,12

Comments

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

Links

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

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

Example

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).

Crossrefs

Cf. A048895.

Sequence in context: A038454 A288275 A287233 * A287238 A072718 A034652

Adjacent sequences: A122714 A122715 A122716 * A122718 A122719 A122720

Keyword

base,nonn

Author

Pierre CAMI, Sep 23 2006, Sep 25 2006

Extensions

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

Status

approved