1864637

Appears in sequences

• Numbers k such that the sum of the squares of the first k primes is divisible by k.at n=8A111441
• Number of n X n binary arrays with all ones connected only in a 1001-1111-0100 pattern in any orientation.at n=8A146831
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1001-1111-0100 pattern in any orientation.at n=18A146833
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1001-1111-0100 pattern in any orientation.at n=19A146833