A163981 - OEIS

A163981 as a simple table

n	a(n)
1	7
2	2
3	2
4	37
5	2
6	89
7	2
8	73
9	151
10	2
11	43
12	127
13	2
14	239
15	59
16	419
17	2
18	73
19	359
20	2
21	401
22	419
23	1163
24	881
25	307
26	2
27	967
28	2
29	569
30	3697
31	397
32	691
33	2
34	457
35	2
36	163
37	821
38	839
39	179
40	1259
41	2
42	2111
43	2
44	1777
45	2
46	223
47	3803
48	3863
49	2
50	3499
51	1201
52	2
53	2269
54	263
55	269
56	1889
57	2
58	283
59	1409
60	2
61	2647

[7,2,2,37,2,89,2,73,151,2,43,127,2,239,59,419,2, 73,359,2,401,419,1163,881,307,2,967,2,569,3697, 397,691,2,457,2,163,821,839,179,1259,2,2111,2, 1777,2,223,3803,3863,2,3499,1201,2,2269,263,269, 1889,2,283,1409,2,2647]