520596

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 00100-00100-11111-00100 pattern in any orientation.at n=10A147325
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 00100-00100-11111-00100 pattern in any orientation.at n=23A147327
• Hilbert series related to measurement of quantum entanglement - see Hero and Willenbring for precise definition.at n=5A176694