Irregular triangle read by rows: M(n,k) = (n-2*k)!, k=0..floor(n/2).
1, 1, 2, 1, 6, 1, 24, 2, 1, 120, 6, 1, 720, 24, 2, 1, 5040, 120, 6, 1, 40320, 720, 24, 2, 1
10 seqfan posts
Mon Feb 22 22:24:46 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 22:02:17 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 21:56:51 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 21:12:18 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 20:09:43 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 19:58:59 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 17:00:13 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 16:58:07 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 15:43:45 CET 2010 [seqfan] Re: A173279 and A173280
Mon Feb 22 14:29:02 CET 2010 [seqfan] A173279 and A173280
Index of A-numbers in seqfan: by ascending order
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