A161116 - cp's OEIS frontend

A161116 a(n) is the number of nontrivial positive divisors of 2n+3.

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

[0, 0, 0, 1, 0, 0, 2, 0, 0, 2, 0, 1, 2, 0, 0, 2, 2, 0, 2, 0, 0, 4, 0, 1, 2, 0, 2, 2, 0, 0, 4, 2, 0, 2, 0, 0, 4, 2, 0, 3, 0, 2, 2, 0, 2, 2, 2, 0, 4, 0, 0, 6, 0, 0, 2, 0, 2, 4, 2, 1, 2, 2, 0, 2, 0, 2, 6, 0, 0, 2, 2, 2, 4, 0, 0, 4, 2, 0, 2, 2, 0, 6, 0, 1, 4, 0, 4, 2, 0, 0, 2]

cp's OEIS Frontend

A161116 a(n) is the number of nontrivial positive divisors of 2n+3.

Table of values

List of values

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

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

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