A205966 - OEIS

A205966 as a simple table

n	a(n)
0	1
1	6
2	0
3	12
4	18
5	0
6	0
7	156
8	0
9	204
10	0
11	0
12	864
13	2796
14	0
15	0
16	5922
17	0
18	0
19	50172
20	0
21	131352
22	0
23	0
24	0
25	450150
26	0
27	1178508
28	3813732
29	0
30	0
31	16155228
32	0
33	0
34	0
35	0
36	89582112
37	289893804
38	0
39	758951832
40	0
41	0
42	0
43	5201933244
44	0
45	0
46	0
47	0
48	28845161856
49	140017356882
50	0
51	0

[1,6,0,12,18,0,0,156,0,204,0,0,864,2796,0,0,5922, 0,0,50172,0,131352,0,0,0,450150,0,1178508,3813732, 0,0,16155228,0,0,0,0,89582112,289893804,0, 758951832,0,0,0,5201933244,0,0,0,0,28845161856, 140017356882,0,0]