a(n) is the smallest number m such that k*m - 1 for k=2,3,...,n is prime.

A125838

a(n) is the smallest number m such that k*m - 1 for k=2,3,...,n is prime.

Terms

    a(0) =2a(1) =2a(2) =2a(3) =6a(4) =120a(5) =120a(6) =2894220a(7) =397073040a(8) =1236161850a(9) =764907546690

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