1354121

Appears in sequences

• Number of n X n binary arrays with all ones connected only in a 1010-1111-0101 pattern in any orientation.at n=9A147428
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1010-1111-0101 pattern in any orientation.at n=20A147430
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1010-1111-0101 pattern in any orientation.at n=21A147430
• Seidel's triangle generating A006846 read by rows, T(n,k) for n>=0 and 0<=k<=n.at n=39A297628