OFFSET
1,1
COMMENTS
See A333434 for the definition and images of the checkerboard.
LINKS
Lars Blomberg, Table of n, a(n) for n = 1..201 (the first 27 rows)
EXAMPLE
Table begins:
4;
84, 20;
692, 312, 72, 4;
2708, 2020, 400, 88, 0, 4;
7876, 5764, 1580, 264, 20, 4;
18220, 14868, 4960, 904, 112, 24;
36764, 30624, 11224, 2496, 304, 52;
66004, 55192, 18624, 3952, 472, 48;
111764, 97840, 40008, 9912, 1740, 244, 36;
175156, 158280, 63632, 15744, 2560, 156, 8, 16;
...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Scott R. Shannon and N. J. A. Sloane, Mar 22 2020
EXTENSIONS
a(32) and beyond from Lars Blomberg, Jun 03 2020
STATUS
approved