OFFSET
1,1
LINKS
Brian L. Galebach, n-Uniform Tilings
EXAMPLE
For n = 3 there are 11 uniform tilings, 20 2-uniform tilings and 61 3-uniform tilings. The sum of them is 11 + 20 + 61 = 92, so (3) = 92.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Omar E. Pol, Mar 30 2018
STATUS
approved