A057935 - cp's OEIS frontend

A057935 Number of prime factors of 9^n + 1 (counted with multiplicity).

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	3
7	4
8	2
9	4
10	3
11	4
12	6
13	4
14	4
15	6
16	2
17	4
18	4
19	4
20	5
21	7
22	5
23	4
24	4
25	8
26	4
27	5
28	6
29	4
30	7
31	5
32	2
33	6
34	5
35	9
36	8
37	5
38	6
39	7
40	5
41	5
42	10
43	7
44	6
45	9
46	4
47	4
48	6
49	9
50	6
51	8
52	7
53	6
54	9
55	8
56	9
57	9
58	5
59	3
60	11
61	6
62	4
63	11
64	6
65	8
66	9
67	9
68	8
69	6
70	9
71	5
72	6
73	6
74	6
75	13
76	4
77	8
78	7
79	5
80	4
81	7
82	6
83	5
84	11
85	8
86	5
87	8
88	7
89	4
90	11
91	7
92	9
93	9
94	5
95	9
96	7
97	5
98	6
99	10
100	7
101	6

[2, 2, 3, 3, 4, 3, 4, 2, 4, 3, 4, 6, 4, 4, 6, 2, 4, 4, 4, 5, 7, 5, 4, 4, 8, 4, 5, 6, 4, 7, 5, 2, 6, 5, 9, 8, 5, 6, 7, 5, 5, 10, 7, 6, 9, 4, 4, 6, 9, 6, 8, 7, 6, 9, 8, 9, 9, 5, 3, 11, 6, 4, 11, 6, 8, 9, 9, 8, 6, 9, 5, 6, 6, 6, 13, 4, 8, 7, 5, 4, 7, 6, 5, 11, 8, 5, 8, 7, 4, 11, 7, 9, 9, 5, 9, 7, 5, 6, 10, 7, 6]

cp's OEIS Frontend

A057935 Number of prime factors of 9^n + 1 (counted with multiplicity).

Table of values

List of values

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	3
7	4
8	2
9	4
10	3
11	4
12	6
13	4
14	4
15	6
16	2
17	4
18	4
19	4
20	5
21	7
22	5
23	4
24	4
25	8
26	4
27	5
28	6
29	4
30	7
31	5
32	2
33	6
34	5
35	9
36	8
37	5
38	6
39	7
40	5
41	5
42	10
43	7
44	6
45	9
46	4
47	4
48	6
49	9
50	6
51	8
52	7
53	6
54	9
55	8
56	9
57	9
58	5
59	3
60	11
61	6
62	4
63	11
64	6
65	8
66	9
67	9
68	8
69	6
70	9
71	5
72	6
73	6
74	6
75	13
76	4
77	8
78	7
79	5
80	4
81	7
82	6
83	5
84	11
85	8
86	5
87	8
88	7
89	4
90	11
91	7
92	9
93	9
94	5
95	9
96	7
97	5
98	6
99	10
100	7
101	6

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	3
7	4
8	2
9	4
10	3
11	4
12	6
13	4
14	4
15	6
16	2
17	4
18	4
19	4
20	5
21	7
22	5
23	4
24	4
25	8
26	4
27	5
28	6
29	4
30	7
31	5
32	2
33	6
34	5
35	9
36	8
37	5
38	6
39	7
40	5
41	5
42	10
43	7
44	6
45	9
46	4
47	4
48	6
49	9
50	6
51	8
52	7
53	6
54	9
55	8
56	9
57	9
58	5
59	3
60	11
61	6
62	4
63	11
64	6
65	8
66	9
67	9
68	8
69	6
70	9
71	5
72	6
73	6
74	6
75	13
76	4
77	8
78	7
79	5
80	4
81	7
82	6
83	5
84	11
85	8
86	5
87	8
88	7
89	4
90	11
91	7
92	9
93	9
94	5
95	9
96	7
97	5
98	6
99	10
100	7
101	6

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	3
7	4
8	2
9	4
10	3
11	4
12	6
13	4
14	4
15	6
16	2
17	4
18	4
19	4
20	5
21	7
22	5
23	4
24	4
25	8
26	4
27	5
28	6
29	4
30	7
31	5
32	2
33	6
34	5
35	9
36	8
37	5
38	6
39	7
40	5
41	5
42	10
43	7
44	6
45	9
46	4
47	4
48	6
49	9
50	6
51	8
52	7
53	6
54	9
55	8
56	9
57	9
58	5
59	3
60	11
61	6
62	4
63	11
64	6
65	8
66	9
67	9
68	8
69	6
70	9
71	5
72	6
73	6
74	6
75	13
76	4
77	8
78	7
79	5
80	4
81	7
82	6
83	5
84	11
85	8
86	5
87	8
88	7
89	4
90	11
91	7
92	9
93	9
94	5
95	9
96	7
97	5
98	6
99	10
100	7
101	6