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A140915 Number of 6 X 8 matrices with elements in 0..n with each row and each column in nondecreasing order. 6,8,n can be permuted, see formula. +0
1
1, 3003, 2147145, 614083470, 90474964580, 7997986868872, 469699956117392, 19702998159210080, 623055648083552320, 15480536486999030720, 312230512837780450368, 5247874388850386800416 (list; graph; listen)
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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