A086158 Concatenation of the smaller members of first n pairs of twin primes.

3, 5, 35, 3511, 351117, 35111729, 3511172941, 351117294159, 35111729415971, 35111729415971101, 35111729415971101107, 35111729415971101107137, 35111729415971101107137149, 35111729415971101107137149179

Offset: 2

Author

Cino Hilliard, Sep 08 2003

Keywords

• nonn
• base

Programs

PARI

concattwprl(n) = { y=3; print1(3","5","); forprime(x=5,n, if(isprime(x+2), y=eval(concat(Str(y),Str(x))); print1(y",") ) ) }