A167409 - cp's OEIS frontend

A167409 Very orderly numbers: a number N is "very orderly" if the set of the divisors of N is congruent to the set {1,2,...,tau(N)} mod (tau(N) + 1).

n	a(n)
1	1
2	2
3	5
4	8
5	11
6	12
7	17
8	20
9	23
10	27
11	29
12	38
13	41
14	47
15	52
16	53
17	57
18	58
19	59
20	68
21	71
22	72
23	76
24	83
25	87
26	89
27	101
28	107
29	113
30	117
31	118
32	124
33	131
34	133
35	137
36	149
37	158
38	162
39	164
40	167
41	173
42	177
43	178
44	179
45	188
46	191
47	197
48	203
49	218
50	227
51	233
52	236
53	237
54	239
55	243
56	244
57	247
58	251
59	257

[1, 2, 5, 8, 11, 12, 17, 20, 23, 27, 29, 38, 41, 47, 52, 53, 57, 58, 59, 68, 71, 72, 76, 83, 87, 89, 101, 107, 113, 117, 118, 124, 131, 133, 137, 149, 158, 162, 164, 167, 173, 177, 178, 179, 188, 191, 197, 203, 218, 227, 233, 236, 237, 239, 243, 244, 247, 251, 257]

cp's OEIS Frontend

A167409 Very orderly numbers: a number N is "very orderly" if the set of the divisors of N is congruent to the set {1,2,...,tau(N)} mod (tau(N) + 1).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	8
5	11
6	12
7	17
8	20
9	23
10	27
11	29
12	38
13	41
14	47
15	52
16	53
17	57
18	58
19	59
20	68
21	71
22	72
23	76
24	83
25	87
26	89
27	101
28	107
29	113
30	117
31	118
32	124
33	131
34	133
35	137
36	149
37	158
38	162
39	164
40	167
41	173
42	177
43	178
44	179
45	188
46	191
47	197
48	203
49	218
50	227
51	233
52	236
53	237
54	239
55	243
56	244
57	247
58	251
59	257

n	a(n)
1	1
2	2
3	5
4	8
5	11
6	12
7	17
8	20
9	23
10	27
11	29
12	38
13	41
14	47
15	52
16	53
17	57
18	58
19	59
20	68
21	71
22	72
23	76
24	83
25	87
26	89
27	101
28	107
29	113
30	117
31	118
32	124
33	131
34	133
35	137
36	149
37	158
38	162
39	164
40	167
41	173
42	177
43	178
44	179
45	188
46	191
47	197
48	203
49	218
50	227
51	233
52	236
53	237
54	239
55	243
56	244
57	247
58	251
59	257

n	a(n)
1	1
2	2
3	5
4	8
5	11
6	12
7	17
8	20
9	23
10	27
11	29
12	38
13	41
14	47
15	52
16	53
17	57
18	58
19	59
20	68
21	71
22	72
23	76
24	83
25	87
26	89
27	101
28	107
29	113
30	117
31	118
32	124
33	131
34	133
35	137
36	149
37	158
38	162
39	164
40	167
41	173
42	177
43	178
44	179
45	188
46	191
47	197
48	203
49	218
50	227
51	233
52	236
53	237
54	239
55	243
56	244
57	247
58	251
59	257