A375581 - cp's OEIS frontend

A375581 Numbers m such that there exists an integer k >= 1 for which the concatenation of m, 2m, ..., km is an m-digit number.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	12
10	14
11	15
12	19
13	20
14	23
15	27
16	30
17	33
18	34
19	37
20	40
21	43
22	46
23	49
24	50
25	53
26	58
27	59
28	64
29	69
30	74
31	79
32	83
33	84
34	88
35	93
36	97
37	103
38	107
39	111
40	112
41	116
42	120
43	124
44	125
45	129
46	133
47	137
48	141
49	146
50	150
51	154
52	158
53	162
54	166
55	167
56	171
57	175
58	179
59	183
60	187
61	191

[1, 2, 3, 4, 5, 7, 9, 10, 12, 14, 15, 19, 20, 23, 27, 30, 33, 34, 37, 40, 43, 46, 49, 50, 53, 58, 59, 64, 69, 74, 79, 83, 84, 88, 93, 97, 103, 107, 111, 112, 116, 120, 124, 125, 129, 133, 137, 141, 146, 150, 154, 158, 162, 166, 167, 171, 175, 179, 183, 187, 191]

cp's OEIS Frontend

A375581 Numbers m such that there exists an integer k >= 1 for which the concatenation of m, 2m, ..., km is an m-digit number.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	12
10	14
11	15
12	19
13	20
14	23
15	27
16	30
17	33
18	34
19	37
20	40
21	43
22	46
23	49
24	50
25	53
26	58
27	59
28	64
29	69
30	74
31	79
32	83
33	84
34	88
35	93
36	97
37	103
38	107
39	111
40	112
41	116
42	120
43	124
44	125
45	129
46	133
47	137
48	141
49	146
50	150
51	154
52	158
53	162
54	166
55	167
56	171
57	175
58	179
59	183
60	187
61	191

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	12
10	14
11	15
12	19
13	20
14	23
15	27
16	30
17	33
18	34
19	37
20	40
21	43
22	46
23	49
24	50
25	53
26	58
27	59
28	64
29	69
30	74
31	79
32	83
33	84
34	88
35	93
36	97
37	103
38	107
39	111
40	112
41	116
42	120
43	124
44	125
45	129
46	133
47	137
48	141
49	146
50	150
51	154
52	158
53	162
54	166
55	167
56	171
57	175
58	179
59	183
60	187
61	191

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	10
9	12
10	14
11	15
12	19
13	20
14	23
15	27
16	30
17	33
18	34
19	37
20	40
21	43
22	46
23	49
24	50
25	53
26	58
27	59
28	64
29	69
30	74
31	79
32	83
33	84
34	88
35	93
36	97
37	103
38	107
39	111
40	112
41	116
42	120
43	124
44	125
45	129
46	133
47	137
48	141
49	146
50	150
51	154
52	158
53	162
54	166
55	167
56	171
57	175
58	179
59	183
60	187
61	191