2049754535
domain: N
Appears in sequences
- Number of n X n binary arrays with all ones connected only in a 101-111-100 pattern in any orientation.at n=9A146188
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 101-111-100 pattern in any orientation.at n=20A146190
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 101-111-100 pattern in any orientation.at n=21A146190