A364820 - cp's OEIS frontend

A364820 a(n) is the smallest prime factor of the n-th Pell number A000129(n).

n	a(n)
2	2
3	5
4	2
5	29
6	2
7	13
8	2
9	5
10	2
11	5741
12	2
13	33461
14	2
15	5
16	2
17	137
18	2
19	37
20	2
21	5
22	2
23	229
24	2
25	29
26	2
27	5
28	2
29	44560482149
30	2
31	61
32	2
33	5
34	2
35	13
36	2
37	593
38	2
39	5
40	2
41	1746860020068409
42	2
43	11437
44	2
45	5
46	2
47	3761
48	2
49	13
50	2
51	5
52	2
53	68480406462161287469
54	2
55	29
56	2
57	5
58	2

[2, 5, 2, 29, 2, 13, 2, 5, 2, 5741, 2, 33461, 2, 5, 2, 137, 2, 37, 2, 5, 2, 229, 2, 29, 2, 5, 2, 44560482149, 2, 61, 2, 5, 2, 13, 2, 593, 2, 5, 2, 1746860020068409, 2, 11437, 2, 5, 2, 3761, 2, 13, 2, 5, 2, 68480406462161287469, 2, 29, 2, 5, 2]

cp's OEIS Frontend

A364820 a(n) is the smallest prime factor of the n-th Pell number A000129(n).

Table of values

List of values