

A162678


Number of fixed strictly disconnected nominoes bounded (not necessarily tightly) by an n*n square


0



0, 2, 42, 937, 26427, 937126, 40290848, 2036152559, 118202398712, 7747410863508, 565695467280668, 45525704815211707, 4002930269942820774, 381750656962679848234, 39244733577786597223238
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OFFSET

1,2


COMMENTS



LINKS



EXAMPLE

a(2)=2: the two rotations of the disconnected domino consisting of two squares connected at a vertex


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



