A223549 - OEIS

A223549 as a simple table

n	a(n)
0	1
1	3
2	1
3	21
4	15
5	3
6	77
7	43
8	35
9	5
10	1155
11	885
12	1095
13	315
14	35
15	4389
16	8589
17	7161
18	777
19	693
20	63
21	33649
22	80353
23	42245
24	12285
25	16485
26	3003
27	231
28	129789
29	91635
30	233001
31	170145
32	152625
33	20889
34	6435
35	429
36	4023459
37	3283533
38	9804465
39	8625375
40	9695565
41	1772199
42	819819
43	109395
44	6435
45	15646785
46	58019335
47	49782755
48	25638305
49	69324255
50	31726695
51	9794785
52	245245
53	230945
54	12155

[1,3,1,21,15,3,77,43,35,5,1155,885,1095,315,35, 4389,8589,7161,777,693,63,33649,80353,42245,12285, 16485,3003,231,129789,91635,233001,170145,152625, 20889,6435,429,4023459,3283533,9804465,8625375, 9695565,1772199,819819,109395,6435,15646785, 58019335,49782755,25638305,69324255,31726695, 9794785,245245,230945,12155]