Number of (directed) Hamiltonian paths in the n-ladder graph.
2, 8, 16, 28, 44, 64, 88, 116, 148, 184, 224, 268, 316, 368, 424, 484, 548, 616, 688
1 seqfan posts
Fri Jun 4 18:01:20 CEST 2010 [seqfan] Re: 3D version of A000938: 3-in-line inside the nXnXn cube