OFFSET
1,1
COMMENTS
Dimer tilings of 2n x k toroidal grid.
LINKS
Seiichi Manyama, Antidiagonals n = 1..50, flattened
P. W. Kasteleyn, The statistics of dimers on a lattice, I. the number of dimer arrangements on a quadratic lattice, Physica 27 (1961), 1209-1225. See Eq. (25).
FORMULA
EXAMPLE
Square array begins:
2, 8, 14, 36, 82, 200, ...
2, 36, 50, 272, 722, 3108, ...
2, 200, 224, 3108, 9922, 90176, ...
2, 1156, 1058, 39952, 155682, 3113860, ...
2, 6728, 5054, 537636, 2540032, 114557000, ...
2, 39204, 24200, 7379216, 41934482, 4357599552, ...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Seiichi Manyama, Feb 18 2021
EXTENSIONS
New name from Andrey Zabolotskiy, Dec 26 2021
STATUS
approved