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A038763 Triangular matrix arising in enumeration of catafusenes, read by rows. +0
7
1, 1, 1, 1, 4, 3, 1, 7, 15, 9, 1, 10, 36, 54, 27, 1, 13, 66, 162, 189, 81, 1, 16, 105, 360, 675, 648, 243, 1, 19, 153, 675, 1755, 2673, 2187, 729, 1, 22, 210, 1134, 3780, 7938, 10206, 7290, 2187, 1, 25, 276, 1764, 7182, 19278, 34020, 37908, 24057, 6561, 1, 28 (list; table; graph; listen)
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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