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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.
1
2, 8, 64, 288, 1408, 7248, 39056
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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
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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)