A323853 Number of figure 8's having 2n edges in one loop and 6 edges in the other and which are weakly embeddable in the square lattice.

2, 8, 64, 288, 1408, 7248, 39056

Offset

2,1

Links

Table of n, a(n) for n=2..8.

S. G. Whittington and J. P. Valleau, Figure eights on the square lattice: enumeration and Monte Carlo estimation, J. Phys. A 3 (1970), 21-27. See Table 1.

Crossrefs

Column 2 of triangle in A323852.

Sequence in context: A110708 A295232 A287229 * A354276 A353821 A354237

Adjacent sequences: A323850 A323851 A323852 * A323854 A323855 A323856

Keyword

nonn,more

Author

N. J. A. Sloane, Feb 09 2019

Status

approved