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A037186
Number of ways of placing 2n points on n X n grid so no 3 are in a line (solutions with symmetry about one main diagonal).
+0
2
0, 0, 0, 0, 2, 0, 1, 5, 3, 3, 6, 3, 9, 5, 13, 14, 12, 14, 16, 17, 13, 18, 34, 43, 55
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
AT&T Labs Research
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