A322975 - cp's OEIS frontend

A322975 Number of divisors d of n such that d-2 is prime.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	2
16	1
17	0
18	1
19	1
20	2
21	2
22	0
23	0
24	1
25	2
26	1
27	1
28	2
29	0
30	2
31	1
32	1
33	1
34	0
35	2
36	2
37	0
38	1
39	2
40	2
41	0
42	2
43	1
44	1
45	4
46	0
47	0
48	1
49	2
50	2
51	0
52	2
53	0
54	1
55	2
56	2
57	1
58	0
59	0
60	3
61	1
62	1
63	4
64	1
65	2
66	1
67	0
68	1
69	1
70	2
71	0
72	2
73	1
74	0
75	4
76	2
77	1
78	2
79	0
80	2
81	2
82	0
83	0
84	3
85	2
86	1
87	0
88	1
89	0
90	4
91	3
92	1
93	1
94	0
95	2
96	1
97	0
98	2
99	3
100	3
101	0
102	0
103	1
104	2
105	5

[0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 2, 1, 0, 1, 1, 2, 2, 0, 0, 1, 2, 1, 1, 2, 0, 2, 1, 1, 1, 0, 2, 2, 0, 1, 2, 2, 0, 2, 1, 1, 4, 0, 0, 1, 2, 2, 0, 2, 0, 1, 2, 2, 1, 0, 0, 3, 1, 1, 4, 1, 2, 1, 0, 1, 1, 2, 0, 2, 1, 0, 4, 2, 1, 2, 0, 2, 2, 0, 0, 3, 2, 1, 0, 1, 0, 4, 3, 1, 1, 0, 2, 1, 0, 2, 3, 3, 0, 0, 1, 2, 5]

cp's OEIS Frontend

A322975 Number of divisors d of n such that d-2 is prime.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	2
16	1
17	0
18	1
19	1
20	2
21	2
22	0
23	0
24	1
25	2
26	1
27	1
28	2
29	0
30	2
31	1
32	1
33	1
34	0
35	2
36	2
37	0
38	1
39	2
40	2
41	0
42	2
43	1
44	1
45	4
46	0
47	0
48	1
49	2
50	2
51	0
52	2
53	0
54	1
55	2
56	2
57	1
58	0
59	0
60	3
61	1
62	1
63	4
64	1
65	2
66	1
67	0
68	1
69	1
70	2
71	0
72	2
73	1
74	0
75	4
76	2
77	1
78	2
79	0
80	2
81	2
82	0
83	0
84	3
85	2
86	1
87	0
88	1
89	0
90	4
91	3
92	1
93	1
94	0
95	2
96	1
97	0
98	2
99	3
100	3
101	0
102	0
103	1
104	2
105	5

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	2
16	1
17	0
18	1
19	1
20	2
21	2
22	0
23	0
24	1
25	2
26	1
27	1
28	2
29	0
30	2
31	1
32	1
33	1
34	0
35	2
36	2
37	0
38	1
39	2
40	2
41	0
42	2
43	1
44	1
45	4
46	0
47	0
48	1
49	2
50	2
51	0
52	2
53	0
54	1
55	2
56	2
57	1
58	0
59	0
60	3
61	1
62	1
63	4
64	1
65	2
66	1
67	0
68	1
69	1
70	2
71	0
72	2
73	1
74	0
75	4
76	2
77	1
78	2
79	0
80	2
81	2
82	0
83	0
84	3
85	2
86	1
87	0
88	1
89	0
90	4
91	3
92	1
93	1
94	0
95	2
96	1
97	0
98	2
99	3
100	3
101	0
102	0
103	1
104	2
105	5

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	2
16	1
17	0
18	1
19	1
20	2
21	2
22	0
23	0
24	1
25	2
26	1
27	1
28	2
29	0
30	2
31	1
32	1
33	1
34	0
35	2
36	2
37	0
38	1
39	2
40	2
41	0
42	2
43	1
44	1
45	4
46	0
47	0
48	1
49	2
50	2
51	0
52	2
53	0
54	1
55	2
56	2
57	1
58	0
59	0
60	3
61	1
62	1
63	4
64	1
65	2
66	1
67	0
68	1
69	1
70	2
71	0
72	2
73	1
74	0
75	4
76	2
77	1
78	2
79	0
80	2
81	2
82	0
83	0
84	3
85	2
86	1
87	0
88	1
89	0
90	4
91	3
92	1
93	1
94	0
95	2
96	1
97	0
98	2
99	3
100	3
101	0
102	0
103	1
104	2
105	5