A077182 - cp's OEIS frontend

A077182 Smallest number k such that the concatenation of natural numbers from 1 to k is divisible by the prime(n).

n	a(n)
1	2
2	2
3	5
4	11
5	106
6	11
7	21
8	27
9	33
10	31
11	46
12	21
13	3
14	19
15	8
16	83
17	104
18	352
19	11
20	37
21	79
22	19
23	71
24	102
25	18
26	80
27	21
28	11
29	49
30	13
31	7
32	21
33	79
34	35
35	381
36	35
37	60
38	452
39	237
40	234
41	48
42	138
43	184
44	105
45	64
46	98
47	36
48	606
49	511
50	315
51	230
52	206
53	318
54	227
55	979
56	388
57	33
58	343
59	174
60	19
61	268
62	111

[2, 2, 5, 11, 106, 11, 21, 27, 33, 31, 46, 21, 3, 19, 8, 83, 104, 352, 11, 37, 79, 19, 71, 102, 18, 80, 21, 11, 49, 13, 7, 21, 79, 35, 381, 35, 60, 452, 237, 234, 48, 138, 184, 105, 64, 98, 36, 606, 511, 315, 230, 206, 318, 227, 979, 388, 33, 343, 174, 19, 268, 111]

cp's OEIS Frontend

A077182 Smallest number k such that the concatenation of natural numbers from 1 to k is divisible by the prime(n).

Table of values

List of values

n	a(n)
1	2
2	2
3	5
4	11
5	106
6	11
7	21
8	27
9	33
10	31
11	46
12	21
13	3
14	19
15	8
16	83
17	104
18	352
19	11
20	37
21	79
22	19
23	71
24	102
25	18
26	80
27	21
28	11
29	49
30	13
31	7
32	21
33	79
34	35
35	381
36	35
37	60
38	452
39	237
40	234
41	48
42	138
43	184
44	105
45	64
46	98
47	36
48	606
49	511
50	315
51	230
52	206
53	318
54	227
55	979
56	388
57	33
58	343
59	174
60	19
61	268
62	111

n	a(n)
1	2
2	2
3	5
4	11
5	106
6	11
7	21
8	27
9	33
10	31
11	46
12	21
13	3
14	19
15	8
16	83
17	104
18	352
19	11
20	37
21	79
22	19
23	71
24	102
25	18
26	80
27	21
28	11
29	49
30	13
31	7
32	21
33	79
34	35
35	381
36	35
37	60
38	452
39	237
40	234
41	48
42	138
43	184
44	105
45	64
46	98
47	36
48	606
49	511
50	315
51	230
52	206
53	318
54	227
55	979
56	388
57	33
58	343
59	174
60	19
61	268
62	111

n	a(n)
1	2
2	2
3	5
4	11
5	106
6	11
7	21
8	27
9	33
10	31
11	46
12	21
13	3
14	19
15	8
16	83
17	104
18	352
19	11
20	37
21	79
22	19
23	71
24	102
25	18
26	80
27	21
28	11
29	49
30	13
31	7
32	21
33	79
34	35
35	381
36	35
37	60
38	452
39	237
40	234
41	48
42	138
43	184
44	105
45	64
46	98
47	36
48	606
49	511
50	315
51	230
52	206
53	318
54	227
55	979
56	388
57	33
58	343
59	174
60	19
61	268
62	111