A193294 - OEIS

A193294 as a simple table

n	a(n)
1	0
2	0
3	2
4	0
5	0
6	14
7	0
8	0
9	36
10	0
11	0
12	390
13	0
14	0
15	744
16	0
17	0
18	5040
19	0
20	0
21	11816
22	0
23	0
24	154752
25	0
26	0
27	213840
28	0
29	0
30	1999872
31	0
32	0
33	3564360
34	0
35	0
36	46656000
37	0
38	0
39	63517896
40	0
41	0
42	526048320
43	0
44	0
45	1465647264
46	0
47	0
48	16665772032
49	0
50	0
51	20377766312
52	0
53	0
54	173039328000

[0,0,2,0,0,14,0,0,36,0,0,390,0,0,744,0,0,5040,0,0, 11816,0,0,154752,0,0,213840,0,0,1999872,0,0, 3564360,0,0,46656000,0,0,63517896,0,0,526048320,0, 0,1465647264,0,0,16665772032,0,0,20377766312,0,0, 173039328000]