Number of n-step walks on square lattice (no points repeated, no adjacent points unless consecutive in path).
1, 4, 12, 28, 68, 164, 396, 940, 2244, 5324, 12668, 29940, 71012, 167468, 396172
1 seqfan posts
Mon Nov 22 19:56:56 CET 2010 [seqfan] Re: Correcting A002932 (n-step walks on square lattice)