24619

Appears in sequences

• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 110-111-110 pattern in any orientation.at n=14A146270
• Number of n X 2 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.at n=9A203454
• Numbers k such that k!6 - 6 is prime, where k!6 is the sextuple factorial number (A085158).at n=19A289685