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A034182
Not necessarily symmetric n x 2 crossword puzzle grids.
+0
15
1, 5, 15, 39, 97, 237, 575, 1391, 3361, 8117, 19599, 47319, 114241, 275805, 665855, 1607519, 3880897, 9369317, 22619535, 54608391, 131836321, 318281037, 768398399, 1855077839, 4478554081, 10812186005, 26102926095, 63018038199
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 5 08:23 EST 2009. Contains 170348 sequences.
AT&T Labs Research
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