A083917 - cp's OEIS frontend

A083917 Number of divisors of n that are congruent to 7 modulo 10.

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

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

cp's OEIS Frontend

A083917 Number of divisors of n that are congruent to 7 modulo 10.

Table of values

List of values

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

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

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