A226787 - cp's OEIS frontend

A226787 If n=0 (mod 3) then a(n)=0, otherwise a(n)=9^(-1) in Z/nZ*.

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

[0, 1, 0, 1, 4, 0, 4, 1, 0, 9, 5, 0, 3, 11, 0, 9, 2, 0, 17, 9, 0, 5, 18, 0, 14, 3, 0, 25, 13, 0, 7, 25, 0, 19, 4, 0, 33, 17, 0, 9, 32, 0, 24, 5, 0, 41, 21, 0, 11, 39, 0, 29, 6, 0, 49, 25, 0, 13, 46, 0, 34, 7, 0, 57, 29]

cp's OEIS Frontend

A226787 If n=0 (mod 3) then a(n)=0, otherwise a(n)=9^(-1) in Z/nZ*.

Table of values

List of values

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

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

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