A082399 - cp's OEIS frontend

A082399 a(1) = 1; thereafter, a(n) is the smallest nonnegative number such that the number Sum_{i=1..n} a(i)*10^(n-i) is divisible by n.

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	5
8	6
9	4
10	0
11	5
12	10
13	2
14	2
15	5
16	6
17	16
18	8
19	14
20	0
21	7
22	18
23	19
24	2
25	5
26	10
27	6
28	0
29	25
30	20
31	2
32	20
33	17
34	12
35	20
36	28
37	13
38	4
39	13
40	30
41	16
42	20
43	36
44	4
45	35
46	28
47	28
48	16
49	29
50	10
51	39
52	14
53	12
54	4
55	50
56	20
57	14
58	24
59	7
60	50
61	14
62	54
63	55
64	18
65	10
66	44
67	62
68	52
69	63
70	50
71	7
72	18
73	6
74	62
75	55
76	54
77	54
78	54
79	35
80	10

[1, 0, 2, 0, 0, 0, 5, 6, 4, 0, 5, 10, 2, 2, 5, 6, 16, 8, 14, 0, 7, 18, 19, 2, 5, 10, 6, 0, 25, 20, 2, 20, 17, 12, 20, 28, 13, 4, 13, 30, 16, 20, 36, 4, 35, 28, 28, 16, 29, 10, 39, 14, 12, 4, 50, 20, 14, 24, 7, 50, 14, 54, 55, 18, 10, 44, 62, 52, 63, 50, 7, 18, 6, 62, 55, 54, 54, 54, 35, 10]

cp's OEIS Frontend

A082399 a(1) = 1; thereafter, a(n) is the smallest nonnegative number such that the number Sum_{i=1..n} a(i)*10^(n-i) is divisible by n.

Table of values

List of values

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	5
8	6
9	4
10	0
11	5
12	10
13	2
14	2
15	5
16	6
17	16
18	8
19	14
20	0
21	7
22	18
23	19
24	2
25	5
26	10
27	6
28	0
29	25
30	20
31	2
32	20
33	17
34	12
35	20
36	28
37	13
38	4
39	13
40	30
41	16
42	20
43	36
44	4
45	35
46	28
47	28
48	16
49	29
50	10
51	39
52	14
53	12
54	4
55	50
56	20
57	14
58	24
59	7
60	50
61	14
62	54
63	55
64	18
65	10
66	44
67	62
68	52
69	63
70	50
71	7
72	18
73	6
74	62
75	55
76	54
77	54
78	54
79	35
80	10

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	5
8	6
9	4
10	0
11	5
12	10
13	2
14	2
15	5
16	6
17	16
18	8
19	14
20	0
21	7
22	18
23	19
24	2
25	5
26	10
27	6
28	0
29	25
30	20
31	2
32	20
33	17
34	12
35	20
36	28
37	13
38	4
39	13
40	30
41	16
42	20
43	36
44	4
45	35
46	28
47	28
48	16
49	29
50	10
51	39
52	14
53	12
54	4
55	50
56	20
57	14
58	24
59	7
60	50
61	14
62	54
63	55
64	18
65	10
66	44
67	62
68	52
69	63
70	50
71	7
72	18
73	6
74	62
75	55
76	54
77	54
78	54
79	35
80	10

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	5
8	6
9	4
10	0
11	5
12	10
13	2
14	2
15	5
16	6
17	16
18	8
19	14
20	0
21	7
22	18
23	19
24	2
25	5
26	10
27	6
28	0
29	25
30	20
31	2
32	20
33	17
34	12
35	20
36	28
37	13
38	4
39	13
40	30
41	16
42	20
43	36
44	4
45	35
46	28
47	28
48	16
49	29
50	10
51	39
52	14
53	12
54	4
55	50
56	20
57	14
58	24
59	7
60	50
61	14
62	54
63	55
64	18
65	10
66	44
67	62
68	52
69	63
70	50
71	7
72	18
73	6
74	62
75	55
76	54
77	54
78	54
79	35
80	10