A276981 - cp's OEIS frontend

A276981 Irregular triangle T(n,k) read by rows of residue classes of powers of 10 modulo n.

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	0
10	1
11	4
12	1
13	3
14	2
15	6
16	4
17	5
18	1
19	2
20	4
21	0
22	1
23	1
24	0
25	1
26	10
27	1
28	10
29	4
30	1
31	10
32	9
33	12
34	3
35	4
36	1
37	10
38	2
39	6
40	4
41	12
42	8
43	1
44	10
45	1
46	10
47	4
48	8
49	0
50	1
51	10
52	15
53	14
54	4
55	6
56	9
57	5
58	16
59	7
60	2
61	3
62	13
63	11
64	8
65	12
66	1
67	10
68	1
69	10
70	5
71	12
72	6
73	3
74	11
75	15
76	17
77	18
78	9
79	14
80	7
81	13
82	16
83	8
84	4
85	2

[0, 1, 0, 1, 1, 2, 0, 1, 0, 1, 4, 1, 3, 2, 6, 4, 5, 1, 2, 4, 0, 1, 1, 0, 1, 10, 1, 10, 4, 1, 10, 9, 12, 3, 4, 1, 10, 2, 6, 4, 12, 8, 1, 10, 1, 10, 4, 8, 0, 1, 10, 15, 14, 4, 6, 9, 5, 16, 7, 2, 3, 13, 11, 8, 12, 1, 10, 1, 10, 5, 12, 6, 3, 11, 15, 17, 18, 9, 14, 7, 13, 16, 8, 4, 2]

cp's OEIS Frontend

A276981 Irregular triangle T(n,k) read by rows of residue classes of powers of 10 modulo n.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	0
10	1
11	4
12	1
13	3
14	2
15	6
16	4
17	5
18	1
19	2
20	4
21	0
22	1
23	1
24	0
25	1
26	10
27	1
28	10
29	4
30	1
31	10
32	9
33	12
34	3
35	4
36	1
37	10
38	2
39	6
40	4
41	12
42	8
43	1
44	10
45	1
46	10
47	4
48	8
49	0
50	1
51	10
52	15
53	14
54	4
55	6
56	9
57	5
58	16
59	7
60	2
61	3
62	13
63	11
64	8
65	12
66	1
67	10
68	1
69	10
70	5
71	12
72	6
73	3
74	11
75	15
76	17
77	18
78	9
79	14
80	7
81	13
82	16
83	8
84	4
85	2

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	0
10	1
11	4
12	1
13	3
14	2
15	6
16	4
17	5
18	1
19	2
20	4
21	0
22	1
23	1
24	0
25	1
26	10
27	1
28	10
29	4
30	1
31	10
32	9
33	12
34	3
35	4
36	1
37	10
38	2
39	6
40	4
41	12
42	8
43	1
44	10
45	1
46	10
47	4
48	8
49	0
50	1
51	10
52	15
53	14
54	4
55	6
56	9
57	5
58	16
59	7
60	2
61	3
62	13
63	11
64	8
65	12
66	1
67	10
68	1
69	10
70	5
71	12
72	6
73	3
74	11
75	15
76	17
77	18
78	9
79	14
80	7
81	13
82	16
83	8
84	4
85	2

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	0
10	1
11	4
12	1
13	3
14	2
15	6
16	4
17	5
18	1
19	2
20	4
21	0
22	1
23	1
24	0
25	1
26	10
27	1
28	10
29	4
30	1
31	10
32	9
33	12
34	3
35	4
36	1
37	10
38	2
39	6
40	4
41	12
42	8
43	1
44	10
45	1
46	10
47	4
48	8
49	0
50	1
51	10
52	15
53	14
54	4
55	6
56	9
57	5
58	16
59	7
60	2
61	3
62	13
63	11
64	8
65	12
66	1
67	10
68	1
69	10
70	5
71	12
72	6
73	3
74	11
75	15
76	17
77	18
78	9
79	14
80	7
81	13
82	16
83	8
84	4
85	2