Smarandache-Wellin numbers: a(n) is the concatenation of first n primes (written in base 10).

A019518

Smarandache-Wellin numbers: a(n) is the concatenation of first n primes (written in base 10).

Terms

    a(0) =2a(1) =23a(2) =235a(3) =2357a(4) =235711a(5) =23571113a(6) =2357111317a(7) =235711131719

External references