OFFSET
0,4
COMMENTS
The heptagonal tiling is represented by Schläfli symbol {7,3}.
This sequence is computed from via program by Christian Sievers in the Code Golf Stack Exchange link.
LINKS
Code Golf Stack Exchange, Impress Donald Knuth by counting polyominoes on the hyperbolic plane
Wikipedia, Heptagonal tiling
Wikipedia, Polyform
PROG
Several programs are available via the Code Golf link.
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
Peter Kagey, Mar 05 2020
EXTENSIONS
a(9)-a(12) from Ed Wynn, Feb 14 2021
STATUS
approved