A012744 - OEIS

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A012744 as a simple table

n	a(n)
0	1
1	0
2	0
3	504
4	24384
5	2375296
6	338479232
7	64501554688
8	16130341302272
9	5112670099460096
10	2003580047549120512
11	951418445045046378496
12	538352433444301745848320
13	357916525207050277213175808

[1,0,0,504,24384,2375296,338479232,64501554688, 16130341302272,5112670099460096, 2003580047549120512,951418445045046378496, 538352433444301745848320, 357916525207050277213175808]