A105971 - cp's OEIS frontend

A105971 Number of distinct prime divisors of 66...667 (with n 6's).

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	1
6	2
7	1
8	1
9	3
10	1
11	3
12	3
13	4
14	3
15	3
16	3
17	2
18	4
19	1
20	2
21	2
22	1
23	2
24	5
25	2
26	4
27	4
28	3
29	4
30	3
31	3
32	3
33	3
34	4
35	3
36	4
37	3
38	4
39	2
40	1
41	3
42	5
43	4
44	4
45	6
46	6
47	5
48	4
49	2
50	4
51	4
52	4
53	6
54	5
55	4
56	4
57	3
58	3
59	5
60	5
61	3
62	1
63	4
64	5
65	1
66	5
67	5
68	5
69	4
70	3
71	2
72	4
73	4
74	4
75	4
76	5
77	4
78	5
79	6
80	2
81	7
82	6
83	4
84	7
85	5
86	5
87	4
88	5
89	2
90	5
91	4
92	3
93	6
94	4
95	6
96	6
97	4
98	3
99	5

[1, 1, 2, 2, 2, 1, 2, 1, 1, 3, 1, 3, 3, 4, 3, 3, 3, 2, 4, 1, 2, 2, 1, 2, 5, 2, 4, 4, 3, 4, 3, 3, 3, 3, 4, 3, 4, 3, 4, 2, 1, 3, 5, 4, 4, 6, 6, 5, 4, 2, 4, 4, 4, 6, 5, 4, 4, 3, 3, 5, 5, 3, 1, 4, 5, 1, 5, 5, 5, 4, 3, 2, 4, 4, 4, 4, 5, 4, 5, 6, 2, 7, 6, 4, 7, 5, 5, 4, 5, 2, 5, 4, 3, 6, 4, 6, 6, 4, 3, 5]

cp's OEIS Frontend

A105971 Number of distinct prime divisors of 66...667 (with n 6's).

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	1
6	2
7	1
8	1
9	3
10	1
11	3
12	3
13	4
14	3
15	3
16	3
17	2
18	4
19	1
20	2
21	2
22	1
23	2
24	5
25	2
26	4
27	4
28	3
29	4
30	3
31	3
32	3
33	3
34	4
35	3
36	4
37	3
38	4
39	2
40	1
41	3
42	5
43	4
44	4
45	6
46	6
47	5
48	4
49	2
50	4
51	4
52	4
53	6
54	5
55	4
56	4
57	3
58	3
59	5
60	5
61	3
62	1
63	4
64	5
65	1
66	5
67	5
68	5
69	4
70	3
71	2
72	4
73	4
74	4
75	4
76	5
77	4
78	5
79	6
80	2
81	7
82	6
83	4
84	7
85	5
86	5
87	4
88	5
89	2
90	5
91	4
92	3
93	6
94	4
95	6
96	6
97	4
98	3
99	5

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	1
6	2
7	1
8	1
9	3
10	1
11	3
12	3
13	4
14	3
15	3
16	3
17	2
18	4
19	1
20	2
21	2
22	1
23	2
24	5
25	2
26	4
27	4
28	3
29	4
30	3
31	3
32	3
33	3
34	4
35	3
36	4
37	3
38	4
39	2
40	1
41	3
42	5
43	4
44	4
45	6
46	6
47	5
48	4
49	2
50	4
51	4
52	4
53	6
54	5
55	4
56	4
57	3
58	3
59	5
60	5
61	3
62	1
63	4
64	5
65	1
66	5
67	5
68	5
69	4
70	3
71	2
72	4
73	4
74	4
75	4
76	5
77	4
78	5
79	6
80	2
81	7
82	6
83	4
84	7
85	5
86	5
87	4
88	5
89	2
90	5
91	4
92	3
93	6
94	4
95	6
96	6
97	4
98	3
99	5

n	a(n)
0	1
1	1
2	2
3	2
4	2
5	1
6	2
7	1
8	1
9	3
10	1
11	3
12	3
13	4
14	3
15	3
16	3
17	2
18	4
19	1
20	2
21	2
22	1
23	2
24	5
25	2
26	4
27	4
28	3
29	4
30	3
31	3
32	3
33	3
34	4
35	3
36	4
37	3
38	4
39	2
40	1
41	3
42	5
43	4
44	4
45	6
46	6
47	5
48	4
49	2
50	4
51	4
52	4
53	6
54	5
55	4
56	4
57	3
58	3
59	5
60	5
61	3
62	1
63	4
64	5
65	1
66	5
67	5
68	5
69	4
70	3
71	2
72	4
73	4
74	4
75	4
76	5
77	4
78	5
79	6
80	2
81	7
82	6
83	4
84	7
85	5
86	5
87	4
88	5
89	2
90	5
91	4
92	3
93	6
94	4
95	6
96	6
97	4
98	3
99	5