OFFSET
0,2
COMMENTS
This problem was stated in this fashion by R. Kenyon and Ben Young in the Domino Forum (domino@listserv.uml.edu).
LINKS
Suresh Govindarajan, Table of n, a(n) for n = 0..50
S. Govindarajan, A. J. Guttmann and V. Subramanyan, On a square-ice analogue of plane partitions, arXiv:1607.01890 [cond-mat.stat-mech], 2016.
CROSSREFS
KEYWORD
nonn,hard
AUTHOR
Suresh Govindarajan, Jun 30 2016
STATUS
approved