A242434 - OEIS

A242434 as a simple table

n	a(n)
0	1
1	1
2	0
3	0
4	1
5	3
6	0
7	0
8	0
9	1
10	4
11	0
12	0
13	10
14	60
15	0
16	1
17	5
18	0
19	0
20	15
21	105
22	0
23	0
24	0
25	36
26	286
27	0
28	0
29	1281
30	12768
31	0
32	0
33	0
34	56
35	504
36	1
37	7
38	2520
39	27720
40	28
41	378
42	1260
43	0
44	0
45	7014
46	84000
47	0
48	0
49	4621
50	83168
51	360360
52	210
53	2346
54	2522880
55	37837800
56	13860
57	180180
58	120
59	1320

[1,1,0,0,1,3,0,0,0,1,4,0,0,10,60,0,1,5,0,0,15,105, 0,0,0,36,286,0,0,1281,12768,0,0,0,56,504,1,7,2520, 27720,28,378,1260,0,0,7014,84000,0,0,4621,83168, 360360,210,2346,2522880,37837800,13860,180180,120, 1320]