1530196

Appears in sequences

• Number of (undirected) paths in the n X n grid graph.at n=4A288032
• Array read by antidiagonals: T(m,n) = number of (undirected) paths in the grid graph P_m X P_n.at n=40A288518
• Number of (undirected) paths in the grid graph P_5 X P_n.at n=4A358801