23226996

Appears in sequences

• Half the number of n X 5 binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.at n=5A183251
• Half the number of n X 6 binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.at n=4A183252
• T(n,k)=Half the number of nXk binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.at n=49A183253
• T(n,k)=Half the number of nXk binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.at n=50A183253
• Half the number of nX(n+1) binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.at n=4A183254