255201297
domain: N
Appears in sequences
- Number of n X n binary arrays with all ones connected only in a 110-111-010 pattern in any orientation.at n=9A146240
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 110-111-010 pattern in any orientation.at n=20A146242
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 110-111-010 pattern in any orientation.at n=21A146242