Alternately append n-th prime to end or beginning of previous term.

A053066

Alternately append n-th prime to end or beginning of previous term.

Terms

    a(0) =2a(1) =23a(2) =523a(3) =5237a(4) =115237a(5) =11523713a(6) =1711523713a(7) =171152371319

External references