A147645 - cp's OEIS frontend

A147645 Number of distinct Mersenne primes dividing n.

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	1
29	0
30	1
31	1
32	0
33	1
34	0
35	1
36	1
37	0
38	0
39	1
40	0
41	0
42	2
43	0
44	0
45	1
46	0
47	0
48	1
49	1
50	0
51	1
52	0
53	0
54	1
55	0
56	1
57	1
58	0
59	0
60	1
61	0
62	1
63	2
64	0
65	0
66	1
67	0
68	0
69	1
70	1
71	0
72	1
73	0
74	0
75	1
76	0
77	1
78	1
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	1
88	0
89	0
90	1
91	1
92	0
93	2
94	0
95	0
96	1
97	0
98	1
99	1
100	0

[0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 2, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 1, 0, 2, 0, 0, 1, 0, 1, 1, 0]

cp's OEIS Frontend

A147645 Number of distinct Mersenne primes dividing n.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	1
29	0
30	1
31	1
32	0
33	1
34	0
35	1
36	1
37	0
38	0
39	1
40	0
41	0
42	2
43	0
44	0
45	1
46	0
47	0
48	1
49	1
50	0
51	1
52	0
53	0
54	1
55	0
56	1
57	1
58	0
59	0
60	1
61	0
62	1
63	2
64	0
65	0
66	1
67	0
68	0
69	1
70	1
71	0
72	1
73	0
74	0
75	1
76	0
77	1
78	1
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	1
88	0
89	0
90	1
91	1
92	0
93	2
94	0
95	0
96	1
97	0
98	1
99	1
100	0

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	1
29	0
30	1
31	1
32	0
33	1
34	0
35	1
36	1
37	0
38	0
39	1
40	0
41	0
42	2
43	0
44	0
45	1
46	0
47	0
48	1
49	1
50	0
51	1
52	0
53	0
54	1
55	0
56	1
57	1
58	0
59	0
60	1
61	0
62	1
63	2
64	0
65	0
66	1
67	0
68	0
69	1
70	1
71	0
72	1
73	0
74	0
75	1
76	0
77	1
78	1
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	1
88	0
89	0
90	1
91	1
92	0
93	2
94	0
95	0
96	1
97	0
98	1
99	1
100	0

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	1
29	0
30	1
31	1
32	0
33	1
34	0
35	1
36	1
37	0
38	0
39	1
40	0
41	0
42	2
43	0
44	0
45	1
46	0
47	0
48	1
49	1
50	0
51	1
52	0
53	0
54	1
55	0
56	1
57	1
58	0
59	0
60	1
61	0
62	1
63	2
64	0
65	0
66	1
67	0
68	0
69	1
70	1
71	0
72	1
73	0
74	0
75	1
76	0
77	1
78	1
79	0
80	0
81	1
82	0
83	0
84	2
85	0
86	0
87	1
88	0
89	0
90	1
91	1
92	0
93	2
94	0
95	0
96	1
97	0
98	1
99	1
100	0