A061312 - OEIS

A061312 as a simple table

n	a(n)
0	0
1	1
2	1
3	4
4	3
5	2
6	18
7	14
8	11
9	9
10	96
11	78
12	64
13	53
14	44
15	600
16	504
17	426
18	362
19	309
20	265
21	4320
22	3720
23	3216
24	2790
25	2428
26	2119
27	1854
28	35280
29	30960
30	27240
31	24024
32	21234
33	18806
34	16687
35	14833
36	322560
37	287280
38	256320
39	229080
40	205056
41	183822
42	165016
43	148329

[0,1,1,4,3,2,18,14,11,9,96,78,64,53,44,600,504, 426,362,309,265,4320,3720,3216,2790,2428,2119, 1854,35280,30960,27240,24024,21234,18806,16687, 14833,322560,287280,256320,229080,205056,183822, 165016,148329]