OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..225
N. Allegra, Exact solution of the 2d dimer model: Corner free energy, correlation functions and combinatorics, arXiv:1410.4131 [cond-mat.stat-mech], 2014. See Table 5.
MATHEMATICA
Partition[A033511, 2][[All, 1]] (* Jean-François Alcover, Feb 29 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 19 2015
EXTENSIONS
a(0), a(5)-a(9) from Alois P. Heinz, Mar 08 2016
STATUS
approved