339866

Appears in sequences

• Number of n-digit left- or right-truncatable primes with no consecutive zero digits.at n=31A346662
• a(n) is the smallest nonzero number k such that gcd(prime(1)^k + 1, prime(2)^k + 1, ..., prime(n)^k + 1) > 1 and gcd(prime(1)^k + 1, prime(2)^k + 1, ..., prime(n+1)^k + 1) = 1.at n=14A351921