359857

Appears in sequences

• a(n) = n! * Sum_{k=0..floor(n/4)} (-1)^k / (n-4*k)!.at n=9A337751
• Numbers b > 1 such that the smallest five primes, i.e., 2, 3, 5, 7 and 11 are base-b Wieferich primes.at n=30A339534