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A240121
Number of inequivalent ways to cut an n X n square into squares with integer sides, such that the dissection has two reflective symmetries in axes parallel to the sides, and no other reflective symmetries.
3
0, 0, 0, 1, 0, 13, 5, 183, 75, 4408, 1501, 180324
OFFSET
1,6
COMMENTS
The two reflective symmetries imply 180-degree (but not 90-degree) rotational symmetry.
EXAMPLE
This dissection is the only example for n=4:
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CROSSREFS
KEYWORD
nonn,more
AUTHOR
Ed Wynn, Apr 01 2014
STATUS
approved