OFFSET
1,3
COMMENTS
EXAMPLE
For n = 3 (polyominoes of size 4), the 'divisible' polyominoes are the I, O, J, L, S and Z tetrominoes. The T tetromino is not 'divisible'.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Josh Marza, May 30 2018
EXTENSIONS
Definition changed and more terms added by John Mason, Sep 20, 2022
STATUS
approved