68767

Properties

Appears in sequences

• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=13A147100
• Primes p with f(p), f(f(p)) and f(f(f(p))) all prime, where f(n) = prime(n) - n + 1.at n=33A235934
• Primes having only {6, 7, 8} as digits.at n=16A385799
• Primes having only {0, 6, 7, 8} as digits.at n=31A386082
• Prime numbersat n=6835