A075014 - cp's OEIS frontend

A075014 Smallest k such that the concatenation k, k-1 is divisible by n; or 0 if no such number exists.

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

[1, 1, 2, 3, 1, 5, 2, 3, 5, 1, 17, 17, 6, 9, 11, 3, 16, 5, 7, 21, 2, 17, 18, 29, 26, 17, 5, 33, 8, 11, 35, 3, 17, 33, 26, 41, 11, 7, 17, 21, 13, 47, 4, 17, 41, 41, 27, 29, 9, 51, 50, 17, 21, 5, 61, 61, 35, 27, 52, 41, 29, 35, 68, 45, 6]

cp's OEIS Frontend

A075014 Smallest k such that the concatenation k, k-1 is divisible by n; or 0 if no such number exists.

Table of values

List of values

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

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

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