A113470 - OEIS

A113470 as a simple table

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	5
8	11
9	17
10	23
11	5
12	11
13	17
14	23
15	29
16	7
17	37
18	67
19	97
20	127
21	157
22	35
23	65
24	95
25	125
26	155
27	185
28	215
29	635
30	707
31	779
32	851
33	923
34	995
35	1067
36	1139
37	635
38	707
39	779
40	851
41	923
42	995
43	1067
44	1139
45	1211
46	199
47	409
48	619
49	829
50	1039
51	1249
52	1459
53	1669
54	1879
55	2089
56	3841
57	3973

[1,2,3,3,5,7,5,11,17,23,5,11,17,23,29,7,37,67,97, 127,157,35,65,95,125,155,185,215,635,707,779,851, 923,995,1067,1139,635,707,779,851,923,995,1067, 1139,1211,199,409,619,829,1039,1249,1459,1669, 1879,2089,3841,3973]