121130

Appears in sequences

• Number of edge-disjoint paths between opposite corners of 3 X n grid.at n=6A013992
• Number of edge-disjoint paths between opposite corners of 5xn grid.at n=4A013994
• Triangle T(n,k), n >= 2, 0 <= k <= floor(n^2/2)-2, read by rows, where T(n,k) is the number of 2*(k+2)-cycles in the n X n grid graph which pass through NW corner (0,0).at n=34A333651