A322976 - cp's OEIS frontend

A322976 Number of divisors d of n such that d+2 is prime.

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

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

cp's OEIS Frontend

A322976 Number of divisors d of n such that d+2 is prime.

Table of values

List of values

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

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

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