A083781 - OEIS

A083781 as a simple table

n	a(n)
1	1
2	5
3	3
4	13
5	11
6	7
7	31
8	29
9	23
10	17
11	43
12	41
13	37
14	31
15	29
16	109
17	107
18	103
19	101
20	89
21	47
22	1879
23	1877
24	1873
25	1871
26	1867
27	1861
28	59
29	5659
30	5657
31	5653
32	5651
33	5647
34	5641
35	5623
36	97
37	88819
38	88817
39	88813
40	88811
41	88807
42	88801
43	88799
44	88793
45	109
46	855739
47	855737

[1,5,3,13,11,7,31,29,23,17,43,41,37,31,29,109,107, 103,101,89,47,1879,1877,1873,1871,1867,1861,59, 5659,5657,5653,5651,5647,5641,5623,97,88819,88817, 88813,88811,88807,88801,88799,88793,109,855739, 855737]