A120945 - OEIS

A120945 as a simple table

n	a(n)
1	1
2	2
3	1
4	8
5	18
6	12
7	1
8	18
9	108
10	272
11	300
12	120
13	1
14	33
15	393
16	2102
17	5700
18	8160
19	5880
20	1680
21	1
22	54
23	1122
24	10688
25	53550
26	153132
27	258720
28	255360
29	136080
30	30240
31	1
32	82
33	2754
34	42752
35	351650
36	1688892
37	5025832
38	9540272
39	11566800
40	8668800
41	3659040
42	665280

[1,2,1,8,18,12,1,18,108,272,300,120,1,33,393,2102, 5700,8160,5880,1680,1,54,1122,10688,53550,153132, 258720,255360,136080,30240,1,82,2754,42752,351650, 1688892,5025832,9540272,11566800,8668800,3659040, 665280]