OFFSET
1,3
LINKS
Matthias Koch and Sascha Kurz, Enumeration of generalized polyominoes, arXiv:math/0605144 [math.CO], 2006.
S. Kurz, k-polyominoes.
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Sascha Kurz, Feb 07 2005
EXTENSIONS
More terms from Sascha Kurz, Jun 09 2006
Definition corrected by John Mason and Sascha Kurz, Sep 20 2020
STATUS
approved