A213573 - OEIS

A213573 as a simple table

n	a(n)
1	1
2	6
3	4
4	21
5	17
6	9
7	58
8	50
9	34
10	16
11	141
12	125
13	93
14	57
15	25
16	318
17	286
18	222
19	150
20	86
21	36
22	685
23	621
24	493
25	349
26	221
27	121
28	49
29	1434
30	1306
31	1050
32	762
33	506
34	306
35	162
36	64
37	2949
38	2693
39	2181
40	1605
41	1093
42	693
43	405
44	209
45	81
46	5998
47	5486
48	4462
49	3310
50	2286
51	1486

[1,6,4,21,17,9,58,50,34,16,141,125,93,57,25,318, 286,222,150,86,36,685,621,493,349,221,121,49,1434, 1306,1050,762,506,306,162,64,2949,2693,2181,1605, 1093,693,405,209,81,5998,5486,4462,3310,2286,1486]