A366554 - OEIS

A366554 as a simple table

n	a(n)
0	1
1	1
2	0
3	0
4	1
5	2
6	1
7	0
8	2
9	6
10	6
11	2
12	5
13	20
14	30
15	20
16	19
17	70
18	140
19	140
20	112
21	266
22	630
23	840
24	762
25	1176
26	2814
27	4620
28	5049
29	6204
30	12936
31	24156
32	31460
33	36894
34	63492
35	123552
36	185471
37	228800
38	338910
39	634920
40	1050686
41	1411410
42	1944800
43	3354780
44	5820256
45	8513804
46	11644490

[1,1,0,0,1,2,1,0,2,6,6,2,5,20,30,20,19,70,140,140, 112,266,630,840,762,1176,2814,4620,5049,6204, 12936,24156,31460,36894,63492,123552,185471, 228800,338910,634920,1050686,1411410,1944800, 3354780,5820256,8513804,11644490]