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A000784 Symmetrical planar partitions of n: planar partitions (A000219) that when regarded as 3-D objects have just one symmetry plane).
(Formerly M0322 N0119)
+0
9
0, 1, 2, 2, 4, 6, 6, 11, 16, 20, 28, 41, 51, 70, 93, 122, 158, 211, 266, 350, 450, 577, 730, 948, 1186, 1510, 1901, 2408, 2999, 3790, 4703, 5898, 7310, 9111, 11231, 13979, 17168, 21229, 26036, 32095, 39188, 48155, 58657, 71798, 87262, 106472, 129014 (list; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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