Primes formed from concatenation of higher primes onto the previous entry until prime, starting from 2.

A240563

Primes formed from concatenation of higher primes onto the previous entry until prime, starting from 2.

Terms

    a(0) =2a(1) =23a(2) =2311a(3) =231131a(4) =23113147a(5) =23113147229

External references