A280104 - cp's OEIS frontend

A280104 a(n) = smallest prime factor of n-th Lucas number A000032(n), or 1 if there are none.

n	a(n)
0	2
1	1
2	3
3	2
4	7
5	11
6	2
7	29
8	47
9	2
10	3
11	199
12	2
13	521
14	3
15	2
16	2207
17	3571
18	2
19	9349
20	7
21	2
22	3
23	139
24	2
25	11
26	3
27	2
28	7
29	59
30	2
31	3010349
32	1087
33	2
34	3
35	11
36	2
37	54018521
38	3
39	2
40	47
41	370248451
42	2
43	6709
44	7
45	2
46	3
47	6643838879
48	2
49	29
50	3
51	2
52	7
53	119218851371
54	2
55	11
56	47
57	2
58	3
59	709
60	2

[2, 1, 3, 2, 7, 11, 2, 29, 47, 2, 3, 199, 2, 521, 3, 2, 2207, 3571, 2, 9349, 7, 2, 3, 139, 2, 11, 3, 2, 7, 59, 2, 3010349, 1087, 2, 3, 11, 2, 54018521, 3, 2, 47, 370248451, 2, 6709, 7, 2, 3, 6643838879, 2, 29, 3, 2, 7, 119218851371, 2, 11, 47, 2, 3, 709, 2]

cp's OEIS Frontend

A280104 a(n) = smallest prime factor of n-th Lucas number A000032(n), or 1 if there are none.

Table of values

List of values