(1-(n-1)/2^n)*(n!)^n.
2, 1, 3, 162, 269568, 21772800000, 128430157824000000
8 seqfan posts
Tue May 29 16:13:35 CEST 2012 [seqfan] Re: counting matrices by column rises
Tue May 29 08:01:34 CEST 2012 [seqfan] Re: counting matrices by column rises
Mon May 28 20:20:12 CEST 2012 [seqfan] Re: counting matrices by column rises
Mon May 28 19:34:11 CEST 2012 [seqfan] Re: counting matrices by column rises
Mon May 28 19:03:02 CEST 2012 [seqfan] Re: counting matrices by column rises
Mon May 28 01:09:55 CEST 2012 [seqfan] Re: counting matrices by column rises
Sun May 27 21:10:57 CEST 2012 [seqfan] Re: counting matrices by column rises
Sun May 27 20:29:37 CEST 2012 [seqfan] counting matrices by column rises
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