a(n) = smallest positive m such that k*m+1 is prime for k=2..n.

A173750

a(n) = smallest positive m such that k*m+1 is prime for k=2..n.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =330a(4) =714a(5) =13530a(6) =192660a(7) =512820a(8) =4601310a(9) =863815050a(10) =262428279750

External references