587920

Appears in sequences

• Number of n X 4 binary matrices with no 2 X 2 block having four 1's.at n=4A181247
• Number of nX5 binary matrices with no 2X2 block having four 1's.at n=3A181248
• T(n,k)=Number of nXk binary matrices with no 2X2 block having four 1's.at n=31A181253
• T(n,k)=Number of nXk binary matrices with no 2X2 block having four 1's.at n=32A181253