A057939 - cp's OEIS frontend

A057939 Number of prime factors of 5^n + 1 (counted with multiplicity).

n	a(n)
1	2
2	2
3	4
4	2
5	3
6	3
7	4
8	3
9	6
10	4
11	5
12	3
13	4
14	3
15	7
16	3
17	4
18	5
19	5
20	4
21	10
22	4
23	4
24	4
25	5
26	5
27	10
28	3
29	4
30	7
31	5
32	4
33	9
34	6
35	7
36	6
37	5
38	4
39	8
40	5
41	6
42	6
43	6
44	3
45	10
46	3
47	5
48	5
49	7
50	7
51	10
52	5
53	5
54	6
55	7
56	7
57	9
58	3
59	6
60	6
61	6
62	4
63	16
64	4
65	8
66	7
67	3
68	7
69	9
70	7
71	5
72	6
73	5
74	5
75	13
76	5
77	9
78	10
79	6
80	6
81	14
82	6
83	5
84	7
85	9
86	5
87	9
88	7
89	5
90	12
91	8
92	4
93	10
94	6
95	9
96	7
97	7
98	7
99	12

[2, 2, 4, 2, 3, 3, 4, 3, 6, 4, 5, 3, 4, 3, 7, 3, 4, 5, 5, 4, 10, 4, 4, 4, 5, 5, 10, 3, 4, 7, 5, 4, 9, 6, 7, 6, 5, 4, 8, 5, 6, 6, 6, 3, 10, 3, 5, 5, 7, 7, 10, 5, 5, 6, 7, 7, 9, 3, 6, 6, 6, 4, 16, 4, 8, 7, 3, 7, 9, 7, 5, 6, 5, 5, 13, 5, 9, 10, 6, 6, 14, 6, 5, 7, 9, 5, 9, 7, 5, 12, 8, 4, 10, 6, 9, 7, 7, 7, 12]

cp's OEIS Frontend

A057939 Number of prime factors of 5^n + 1 (counted with multiplicity).

Table of values

List of values

n	a(n)
1	2
2	2
3	4
4	2
5	3
6	3
7	4
8	3
9	6
10	4
11	5
12	3
13	4
14	3
15	7
16	3
17	4
18	5
19	5
20	4
21	10
22	4
23	4
24	4
25	5
26	5
27	10
28	3
29	4
30	7
31	5
32	4
33	9
34	6
35	7
36	6
37	5
38	4
39	8
40	5
41	6
42	6
43	6
44	3
45	10
46	3
47	5
48	5
49	7
50	7
51	10
52	5
53	5
54	6
55	7
56	7
57	9
58	3
59	6
60	6
61	6
62	4
63	16
64	4
65	8
66	7
67	3
68	7
69	9
70	7
71	5
72	6
73	5
74	5
75	13
76	5
77	9
78	10
79	6
80	6
81	14
82	6
83	5
84	7
85	9
86	5
87	9
88	7
89	5
90	12
91	8
92	4
93	10
94	6
95	9
96	7
97	7
98	7
99	12

n	a(n)
1	2
2	2
3	4
4	2
5	3
6	3
7	4
8	3
9	6
10	4
11	5
12	3
13	4
14	3
15	7
16	3
17	4
18	5
19	5
20	4
21	10
22	4
23	4
24	4
25	5
26	5
27	10
28	3
29	4
30	7
31	5
32	4
33	9
34	6
35	7
36	6
37	5
38	4
39	8
40	5
41	6
42	6
43	6
44	3
45	10
46	3
47	5
48	5
49	7
50	7
51	10
52	5
53	5
54	6
55	7
56	7
57	9
58	3
59	6
60	6
61	6
62	4
63	16
64	4
65	8
66	7
67	3
68	7
69	9
70	7
71	5
72	6
73	5
74	5
75	13
76	5
77	9
78	10
79	6
80	6
81	14
82	6
83	5
84	7
85	9
86	5
87	9
88	7
89	5
90	12
91	8
92	4
93	10
94	6
95	9
96	7
97	7
98	7
99	12

n	a(n)
1	2
2	2
3	4
4	2
5	3
6	3
7	4
8	3
9	6
10	4
11	5
12	3
13	4
14	3
15	7
16	3
17	4
18	5
19	5
20	4
21	10
22	4
23	4
24	4
25	5
26	5
27	10
28	3
29	4
30	7
31	5
32	4
33	9
34	6
35	7
36	6
37	5
38	4
39	8
40	5
41	6
42	6
43	6
44	3
45	10
46	3
47	5
48	5
49	7
50	7
51	10
52	5
53	5
54	6
55	7
56	7
57	9
58	3
59	6
60	6
61	6
62	4
63	16
64	4
65	8
66	7
67	3
68	7
69	9
70	7
71	5
72	6
73	5
74	5
75	13
76	5
77	9
78	10
79	6
80	6
81	14
82	6
83	5
84	7
85	9
86	5
87	9
88	7
89	5
90	12
91	8
92	4
93	10
94	6
95	9
96	7
97	7
98	7
99	12