**Number of Hamiltonian paths in the graph on n vertices {1,...,n}, with i adjacent to j iff |i-j|<=2.**

*1, 1, 1, 3, 6, 10, 17, 28, 44, 68, 104, 157, 235, 350, 519, 767, 1131, 1665, 2448, 3596*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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