A086060 Concatenation of the larger members of first n pairs of twin primes.

5, 57, 5713, 571319, 57131931, 5713193143, 571319314361, 57131931436173, 57131931436173103, 57131931436173103109, 57131931436173103109139, 57131931436173103109139151, 57131931436173103109139151181

Offset: 3

Author

Cino Hilliard, Sep 08 2003

Keywords

• nonn
• base

Comments

5713...20832089 is the only prime for n up to 10000.

Crossrefs

Cf. A086043, A086158.

Programs

PARI

concattwpr(n) = { y=5; print1(5","); forprime(x=7,n, if(isprime(x-2), y=eval(concat(Str(y),Str(x))); print1(y",") ) ) }