A360873 - OEIS

A360873 as a simple table

n	a(n)
1	1
2	3
3	3
4	7
5	13
6	7
7	15
8	51
9	51
10	15
11	31
12	205
13	397
14	205
15	31
16	63
17	843
18	3303
19	3303
20	843
21	63
22	127
23	3493
24	27877
25	55933
26	27877
27	3493
28	127
29	255
30	14451
31	233751
32	943095
33	943095
34	233751
35	14451
36	255
37	511
38	59485
39	1938517
40	15678925
41	31450861
42	15678925
43	1938517
44	59485
45	511

[1,3,3,7,13,7,15,51,51,15,31,205,397,205,31,63, 843,3303,3303,843,63,127,3493,27877,55933,27877, 3493,127,255,14451,233751,943095,943095,233751, 14451,255,511,59485,1938517,15678925,31450861, 15678925,1938517,59485,511]