A165844 - OEIS

A165844 as a simple table

n	a(n)
1	1
2	23
3	23
4	529
5	23
6	529
7	23
8	12167
9	529
10	529
11	23
12	12167
13	23
14	529
15	529
16	279841
17	23
18	12167
19	23
20	12167
21	529
22	529
23	23
24	279841
25	529
26	529
27	12167
28	12167
29	23
30	12167
31	23
32	6436343
33	529
34	529
35	529
36	279841
37	23
38	529
39	529
40	279841
41	23
42	12167
43	23
44	12167
45	12167

[1,23,23,529,23,529,23,12167,529,529,23,12167,23, 529,529,279841,23,12167,23,12167,529,529,23, 279841,529,529,12167,12167,23,12167,23,6436343, 529,529,529,279841,23,529,529,279841,23,12167,23, 12167,12167]