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A002619 Number of 2-colored patterns on an n X n board.
(Formerly M0887 N0336) 		+0
4
1, 1, 2, 3, 8, 24, 108, 640, 4492, 36336, 329900, 3326788, 36846288, 444790512, 5811886656, 81729688428, 1230752346368, 19760413251956, 336967037143596, 6082255029733168, 115852476579940152, 2322315553428424200, 48869596859895986108 (list; graph; listen)
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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