49008961

Appears in sequences

• a(n) is the least multiple of n such that a(n) = 1 mod k for all integers k with 1 < k < n and k relatively prime to n.at n=18A055006
• a(n) is smallest positive integer multiple of n-th prime, say k*prime(n), such that k*prime(n) == 1 (mod j) for each integer j with 1 < j < prime(n).at n=7A094998
• Expansion of e.g.f. Product_{k>=1} (1 + x^prime(k) / prime(k)!).at n=17A334370