Number of 2n X 3n (0,1,2)-matrices with every row sum 3 and column sum 2.
7, 16260, 747558000, 250071339672000, 369820640830881240000
2 seqfan posts
Mon Dec 14 08:28:00 CET 2009 [seqfan] Re: OEIS wiki user update
Sun Dec 13 10:37:54 CET 2009 [seqfan] Re: OEIS wiki user update
Index of A-numbers in seqfan: by ascending order
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