575280

Appears in sequences

• Number of semi-increasing binary plane trees with n vertices.at n=6A227917
• Number of nX5 0..6 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 7, and upper left element zero.at n=5A230684
• T(n,k)=Number of nXk 0..6 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 7, and upper left element zero.at n=50A230686