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A006561 Number of intersections of diagonals in the interior of regular n-gon.
(Formerly M3833)
+0
17
0, 0, 0, 1, 5, 13, 35, 49, 126, 161, 330, 301, 715, 757, 1365, 1377, 2380, 1837, 3876, 3841, 5985, 5941, 8855, 7297, 12650, 12481, 17550, 17249, 23751, 16801, 31465, 30913, 40920, 40257, 52360, 46981, 66045, 64981, 82251, 80881, 101270 (list; graph; listen)
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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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