OFFSET
2,1
LINKS
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.
EXAMPLE
Triangle begins:
2,
8, 8,
32, 64, 124,
144, 288, 1096, 2388,
708, 1408, 5304, 22888,
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Feb 09 2019
STATUS
approved