A307314 - cp's OEIS frontend

A307314 Number of divisors d of 2n such that adding d to 2n in binary requires no carries.

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

[1, 2, 1, 3, 2, 3, 1, 4, 2, 3, 1, 5, 1, 2, 1, 5, 2, 5, 1, 5, 2, 2, 1, 7, 2, 2, 2, 4, 1, 3, 1, 6, 2, 4, 1, 7, 2, 3, 1, 7, 2, 4, 1, 3, 2, 2, 1, 9, 1, 4, 2, 3, 1, 4, 1, 6, 1, 2, 1, 6, 1, 2, 1, 7, 4, 6, 1, 6, 2, 3, 1, 10, 2, 3, 1, 4, 1, 3, 1, 9]

cp's OEIS Frontend

A307314 Number of divisors d of 2n such that adding d to 2n in binary requires no carries.

Table of values

List of values

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

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

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