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Irreducible bridging trails on square lattice.
0

%I #8 Jul 07 2015 18:15:26

%S 1,1,2,2,2,4,18,48,96,194,398,992,2614,6496,15512,37536,92366,231544,

%T 583442,1464452,3680362,9310622

%N Irreducible bridging trails on square lattice.

%H A. J. Guttmann, <a href="http://dx.doi.org/10.1088/0305-4470/18/4/009">Lattice trails II: numerical results</a>, J. Phys. A 22 (1989), 575-588.

%K nonn,more

%O 1,3

%A _N. J. A. Sloane_, Jul 07 2015