A328177 - cp's OEIS frontend

A328177 a(n) is the minimal value of the expression d OR (n/d) where d runs through the divisors of n and OR denotes the bitwise OR operator.

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

[1, 3, 3, 2, 5, 3, 7, 6, 3, 7, 11, 6, 13, 7, 7, 4, 17, 7, 19, 5, 7, 11, 23, 6, 5, 15, 11, 7, 29, 7, 31, 12, 11, 19, 7, 6, 37, 19, 15, 13, 41, 7, 43, 15, 13, 23, 47, 12, 7, 15, 19, 13, 53, 15, 15, 14, 19, 31, 59, 13, 61, 31, 15, 8, 13, 15, 67, 21, 23, 15, 71, 9]

cp's OEIS Frontend

A328177 a(n) is the minimal value of the expression d OR (n/d) where d runs through the divisors of n and OR denotes the bitwise OR operator.

Table of values

List of values

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

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

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