A272608 - cp's OEIS frontend

A272608 Number of positive integers k such that both n/(k + 2^x) and n/(n/k - 2^y) are integers for some nonnegative x, y.

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

[0, 1, 1, 2, 1, 2, 0, 3, 1, 2, 0, 4, 0, 0, 1, 4, 1, 2, 0, 3, 1, 0, 0, 6, 0, 0, 0, 0, 0, 3, 0, 5, 2, 2, 1, 4, 0, 0, 0, 4, 0, 2, 0, 0, 1, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 5, 0, 0, 1, 6, 2, 4, 0, 2, 0, 1, 0, 6, 0, 0, 0, 0, 1, 0, 0, 5, 0, 0, 0, 3, 0, 0, 0, 0, 0, 2]

cp's OEIS Frontend

A272608 Number of positive integers k such that both n/(k + 2^x) and n/(n/k - 2^y) are integers for some nonnegative x, y.

Table of values

List of values

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

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

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