Number of self-avoiding paths of length 2*(n+A002620(n-1)) along the edges of a grid with n X n square cells, which do not pass above the diagonal, start at the lower left corner and finish at the upper right corner.
A358996
Number of self-avoiding paths of length 2*(n+A002620(n-1)) along the edges of a grid with n X n square cells, which do not pass above the diagonal, start at the lower left corner and finish at the upper right corner.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =10a(5) =20a(6) =248a(7) =1072a(8) =31178a(9) =270026a(10) =18806964a(11) =329412610a(12) =54393195014
External references
- oeis: A358996