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

2,1

Links

Table of n, a(n) for n=2..15.

Prog

(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", ") ) ) }

Crossrefs

Sequence in context: A325582 A145640 A222496 * A158878 A337858 A337859

Adjacent sequences: A086155 A086156 A086157 * A086159 A086160 A086161

Keyword

nonn,base

Author

Cino Hilliard, Sep 08 2003

Status

approved