A167408 - cp's OEIS frontend

A167408 Orderly numbers: a number n is orderly if there exists some number k > tau(n) such that the set of the divisors of n is congruent to the set {1,2,...,tau(n)} mod k.

n	a(n)
1	1
2	2
3	5
4	7
5	8
6	9
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	29
16	31
17	37
18	38
19	41
20	43
21	47
22	52
23	53
24	57
25	58
26	59
27	61
28	67
29	68
30	71
31	72
32	73
33	76
34	79
35	83
36	87
37	89
38	97
39	101
40	103
41	107
42	109
43	113
44	117
45	118
46	124
47	127
48	131
49	133
50	137
51	139
52	149
53	151
54	157
55	158
56	162
57	163
58	164
59	167
60	173
61	177
62	178
63	179

[1, 2, 5, 7, 8, 9, 11, 12, 13, 17, 19, 20, 23, 27, 29, 31, 37, 38, 41, 43, 47, 52, 53, 57, 58, 59, 61, 67, 68, 71, 72, 73, 76, 79, 83, 87, 89, 97, 101, 103, 107, 109, 113, 117, 118, 124, 127, 131, 133, 137, 139, 149, 151, 157, 158, 162, 163, 164, 167, 173, 177, 178, 179]

cp's OEIS Frontend

A167408 Orderly numbers: a number n is orderly if there exists some number k > tau(n) such that the set of the divisors of n is congruent to the set {1,2,...,tau(n)} mod k.

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	7
5	8
6	9
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	29
16	31
17	37
18	38
19	41
20	43
21	47
22	52
23	53
24	57
25	58
26	59
27	61
28	67
29	68
30	71
31	72
32	73
33	76
34	79
35	83
36	87
37	89
38	97
39	101
40	103
41	107
42	109
43	113
44	117
45	118
46	124
47	127
48	131
49	133
50	137
51	139
52	149
53	151
54	157
55	158
56	162
57	163
58	164
59	167
60	173
61	177
62	178
63	179

n	a(n)
1	1
2	2
3	5
4	7
5	8
6	9
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	29
16	31
17	37
18	38
19	41
20	43
21	47
22	52
23	53
24	57
25	58
26	59
27	61
28	67
29	68
30	71
31	72
32	73
33	76
34	79
35	83
36	87
37	89
38	97
39	101
40	103
41	107
42	109
43	113
44	117
45	118
46	124
47	127
48	131
49	133
50	137
51	139
52	149
53	151
54	157
55	158
56	162
57	163
58	164
59	167
60	173
61	177
62	178
63	179

n	a(n)
1	1
2	2
3	5
4	7
5	8
6	9
7	11
8	12
9	13
10	17
11	19
12	20
13	23
14	27
15	29
16	31
17	37
18	38
19	41
20	43
21	47
22	52
23	53
24	57
25	58
26	59
27	61
28	67
29	68
30	71
31	72
32	73
33	76
34	79
35	83
36	87
37	89
38	97
39	101
40	103
41	107
42	109
43	113
44	117
45	118
46	124
47	127
48	131
49	133
50	137
51	139
52	149
53	151
54	157
55	158
56	162
57	163
58	164
59	167
60	173
61	177
62	178
63	179