A075001 - cp's OEIS frontend

A075001 Smallest k such that the concatenation of n consecutive numbers starting with k (from k to n+k-1) is a multiple of n; or 0 if no such number exists.

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	3
8	5
9	1
10	1
11	9
12	1
13	4
14	7
15	1
16	5
17	23
18	1
19	14
20	1
21	9
22	9
23	13
24	5
25	1
26	21
27	1
28	13
29	12
30	1
31	36
32	21
33	9
34	3
35	41
36	1
37	34
38	33
39	9
40	21
41	12
42	9
43	33
44	9
45	1
46	13
47	28
48	5
49	48
50	1
51	23
52	21
53	3
54	1
55	11
56	13
57	14
58	41
59	28
60	1
61	114
62	115
63	9
64	41
65	21
66	9
67	23
68	69
69	1
70	61
71	73
72	5
73	14
74	43
75	1
76	145
77	13
78	9
79	127
80	41
81	9
82	95

[1, 1, 1, 3, 1, 1, 3, 5, 1, 1, 9, 1, 4, 7, 1, 5, 23, 1, 14, 1, 9, 9, 13, 5, 1, 21, 1, 13, 12, 1, 36, 21, 9, 3, 41, 1, 34, 33, 9, 21, 12, 9, 33, 9, 1, 13, 28, 5, 48, 1, 23, 21, 3, 1, 11, 13, 14, 41, 28, 1, 114, 115, 9, 41, 21, 9, 23, 69, 1, 61, 73, 5, 14, 43, 1, 145, 13, 9, 127, 41, 9, 95]

cp's OEIS Frontend

A075001 Smallest k such that the concatenation of n consecutive numbers starting with k (from k to n+k-1) is a multiple of n; or 0 if no such number exists.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	3
8	5
9	1
10	1
11	9
12	1
13	4
14	7
15	1
16	5
17	23
18	1
19	14
20	1
21	9
22	9
23	13
24	5
25	1
26	21
27	1
28	13
29	12
30	1
31	36
32	21
33	9
34	3
35	41
36	1
37	34
38	33
39	9
40	21
41	12
42	9
43	33
44	9
45	1
46	13
47	28
48	5
49	48
50	1
51	23
52	21
53	3
54	1
55	11
56	13
57	14
58	41
59	28
60	1
61	114
62	115
63	9
64	41
65	21
66	9
67	23
68	69
69	1
70	61
71	73
72	5
73	14
74	43
75	1
76	145
77	13
78	9
79	127
80	41
81	9
82	95

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	3
8	5
9	1
10	1
11	9
12	1
13	4
14	7
15	1
16	5
17	23
18	1
19	14
20	1
21	9
22	9
23	13
24	5
25	1
26	21
27	1
28	13
29	12
30	1
31	36
32	21
33	9
34	3
35	41
36	1
37	34
38	33
39	9
40	21
41	12
42	9
43	33
44	9
45	1
46	13
47	28
48	5
49	48
50	1
51	23
52	21
53	3
54	1
55	11
56	13
57	14
58	41
59	28
60	1
61	114
62	115
63	9
64	41
65	21
66	9
67	23
68	69
69	1
70	61
71	73
72	5
73	14
74	43
75	1
76	145
77	13
78	9
79	127
80	41
81	9
82	95

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	3
8	5
9	1
10	1
11	9
12	1
13	4
14	7
15	1
16	5
17	23
18	1
19	14
20	1
21	9
22	9
23	13
24	5
25	1
26	21
27	1
28	13
29	12
30	1
31	36
32	21
33	9
34	3
35	41
36	1
37	34
38	33
39	9
40	21
41	12
42	9
43	33
44	9
45	1
46	13
47	28
48	5
49	48
50	1
51	23
52	21
53	3
54	1
55	11
56	13
57	14
58	41
59	28
60	1
61	114
62	115
63	9
64	41
65	21
66	9
67	23
68	69
69	1
70	61
71	73
72	5
73	14
74	43
75	1
76	145
77	13
78	9
79	127
80	41
81	9
82	95