A089540 - OEIS

A089540 as a simple table

n	a(n)
1	2
2	2
3	3
4	5
5	11
6	7
7	71
8	61
9	5
10	11
11	3
12	97
13	83
14	23
15	7
16	2
17	3
18	263
19	71
20	20639383
21	11
22	281421719
23	3
24	811
25	401
26	1697
27	110298581317
28	29
29	33619
30	2
31	19
32	11
33	11
34	67411
35	7
36	3
37	126397507816417
38	14029308060317546154181
39	13
40	9649
41	53
42	2044687972231331951

[2,2,3,5,11,7,71,61,5,11,3,97,83,23,7,2,3,263,71, 20639383,11,281421719,3,811,401,1697,110298581317, 29,33619,2,19,11,11,67411,7,3,126397507816417, 14029308060317546154181,13,9649,53, 2044687972231331951]