A188170 - cp's OEIS frontend

A188170 The number of divisors d of n of the form d == 3 (mod 8).

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

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

cp's OEIS Frontend

A188170 The number of divisors d of n of the form d == 3 (mod 8).

Table of values

List of values

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

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

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