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For questions involving cubes in higher dimensions or the hypercube graphs.

2 votes

Closed walks on an $n$-cube and alternating permutations

Equation (1) from the above answer can also be viewed as the case in which $n=1$ for $w(n,l).$ This is simply because the number of closed walks of length $2l$ on a one-dimensional cube is always 1 re …
Dave Jung's user avatar