285724

Appears in sequences

• Number of (n+1)X3 0..2 arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.at n=3A186868
• Number of (n+1)X5 0..2 arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.at n=1A186870
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.at n=11A186871
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.at n=13A186871
• Number of unlabeled rooted identity trees with n nodes in which the branches of any node with more than one branch have empty intersection.at n=19A316500