A293958 - cp's OEIS frontend

A293958 Smallest odd prime divisor of (2n+1)^2 + 1.

n	a(n)
1	5
2	13
3	5
4	41
5	61
6	5
7	113
8	5
9	181
10	13
11	5
12	313
13	5
14	421
15	13
16	5
17	613
18	5
19	761
20	29
21	5
22	1013
23	5
24	1201
25	1301
26	5
27	17
28	5
29	1741
30	1861
31	5
32	2113
33	5
34	2381
35	2521
36	5
37	29
38	5
39	3121
40	17
41	5
42	3613
43	5
44	17
45	41
46	5
47	4513
48	5
49	13
50	5101
51	5
52	37
53	5
54	13
55	61
56	5
57	17
58	5
59	73
60	7321
61	5
62	13
63	5
64	53
65	8581
66	5
67	13
68	5
69	9661
70	9941
71	5

[5, 13, 5, 41, 61, 5, 113, 5, 181, 13, 5, 313, 5, 421, 13, 5, 613, 5, 761, 29, 5, 1013, 5, 1201, 1301, 5, 17, 5, 1741, 1861, 5, 2113, 5, 2381, 2521, 5, 29, 5, 3121, 17, 5, 3613, 5, 17, 41, 5, 4513, 5, 13, 5101, 5, 37, 5, 13, 61, 5, 17, 5, 73, 7321, 5, 13, 5, 53, 8581, 5, 13, 5, 9661, 9941, 5]

cp's OEIS Frontend

A293958 Smallest odd prime divisor of (2n+1)^2 + 1.

Table of values

List of values