A144090 - OEIS

A144090 as a simple table

n	a(n)
1	1
2	2
3	0
4	3
5	6
6	3
7	4
8	24
9	36
10	8
11	5
12	60
13	210
14	220
15	45
16	6
17	120
18	780
19	1920
20	1590
21	264
22	7
23	210
24	2205
25	9940
26	19005
27	12978
28	1855
29	8
30	336
31	5208
32	37520
33	130200
34	203952
35	118664
36	14832
37	9
38	504
39	10836
40	114408
41	630630
42	1783656
43	2369556
44	1201464
45	133497

[1,2,0,3,6,3,4,24,36,8,5,60,210,220,45,6,120,780, 1920,1590,264,7,210,2205,9940,19005,12978,1855,8, 336,5208,37520,130200,203952,118664,14832,9,504, 10836,114408,630630,1783656,2369556,1201464, 133497]