A218388 - cp's OEIS frontend

A218388 Bitwise OR of all divisors of n.

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	7
7	7
8	15
9	11
10	15
11	11
12	15
13	13
14	15
15	15
16	31
17	17
18	31
19	19
20	31
21	23
22	31
23	23
24	31
25	29
26	31
27	27
28	31
29	29
30	31
31	31
32	63
33	43
34	51
35	39
36	63
37	37
38	55
39	47
40	63
41	41
42	63
43	43
44	63
45	47
46	63
47	47
48	63
49	55
50	63
51	51
52	63
53	53
54	63
55	63
56	63
57	59
58	63
59	59
60	63
61	61
62	63
63	63
64	127
65	77
66	127

[1, 3, 3, 7, 5, 7, 7, 15, 11, 15, 11, 15, 13, 15, 15, 31, 17, 31, 19, 31, 23, 31, 23, 31, 29, 31, 27, 31, 29, 31, 31, 63, 43, 51, 39, 63, 37, 55, 47, 63, 41, 63, 43, 63, 47, 63, 47, 63, 55, 63, 51, 63, 53, 63, 63, 63, 59, 63, 59, 63, 61, 63, 63, 127, 77, 127]

cp's OEIS Frontend

A218388 Bitwise OR of all divisors of n.

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	7
7	7
8	15
9	11
10	15
11	11
12	15
13	13
14	15
15	15
16	31
17	17
18	31
19	19
20	31
21	23
22	31
23	23
24	31
25	29
26	31
27	27
28	31
29	29
30	31
31	31
32	63
33	43
34	51
35	39
36	63
37	37
38	55
39	47
40	63
41	41
42	63
43	43
44	63
45	47
46	63
47	47
48	63
49	55
50	63
51	51
52	63
53	53
54	63
55	63
56	63
57	59
58	63
59	59
60	63
61	61
62	63
63	63
64	127
65	77
66	127

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	7
7	7
8	15
9	11
10	15
11	11
12	15
13	13
14	15
15	15
16	31
17	17
18	31
19	19
20	31
21	23
22	31
23	23
24	31
25	29
26	31
27	27
28	31
29	29
30	31
31	31
32	63
33	43
34	51
35	39
36	63
37	37
38	55
39	47
40	63
41	41
42	63
43	43
44	63
45	47
46	63
47	47
48	63
49	55
50	63
51	51
52	63
53	53
54	63
55	63
56	63
57	59
58	63
59	59
60	63
61	61
62	63
63	63
64	127
65	77
66	127

n	a(n)
1	1
2	3
3	3
4	7
5	5
6	7
7	7
8	15
9	11
10	15
11	11
12	15
13	13
14	15
15	15
16	31
17	17
18	31
19	19
20	31
21	23
22	31
23	23
24	31
25	29
26	31
27	27
28	31
29	29
30	31
31	31
32	63
33	43
34	51
35	39
36	63
37	37
38	55
39	47
40	63
41	41
42	63
43	43
44	63
45	47
46	63
47	47
48	63
49	55
50	63
51	51
52	63
53	53
54	63
55	63
56	63
57	59
58	63
59	59
60	63
61	61
62	63
63	63
64	127
65	77
66	127