A380531 - cp's OEIS frontend

A380531 a(n) is the multiplicative order of -4 modulo prime(n); a(1) = 0 for completion.

n	a(n)
1	0
2	2
3	1
4	6
5	10
6	3
7	4
8	18
9	22
10	7
11	10
12	9
13	5
14	14
15	46
16	13
17	58
18	15
19	66
20	70
21	18
22	78
23	82
24	22
25	24
26	25
27	102
28	106
29	9
30	7
31	14
32	130
33	17
34	138
35	37
36	30
37	13
38	162
39	166
40	43
41	178
42	45
43	190
44	48
45	49
46	198
47	210
48	74
49	226
50	19
51	58
52	238
53	12
54	50
55	8
56	262
57	67
58	270
59	23
60	70

[0, 2, 1, 6, 10, 3, 4, 18, 22, 7, 10, 9, 5, 14, 46, 13, 58, 15, 66, 70, 18, 78, 82, 22, 24, 25, 102, 106, 9, 7, 14, 130, 17, 138, 37, 30, 13, 162, 166, 43, 178, 45, 190, 48, 49, 198, 210, 74, 226, 19, 58, 238, 12, 50, 8, 262, 67, 270, 23, 70]

cp's OEIS Frontend

A380531 a(n) is the multiplicative order of -4 modulo prime(n); a(1) = 0 for completion.

Table of values

List of values

n	a(n)
1	0
2	2
3	1
4	6
5	10
6	3
7	4
8	18
9	22
10	7
11	10
12	9
13	5
14	14
15	46
16	13
17	58
18	15
19	66
20	70
21	18
22	78
23	82
24	22
25	24
26	25
27	102
28	106
29	9
30	7
31	14
32	130
33	17
34	138
35	37
36	30
37	13
38	162
39	166
40	43
41	178
42	45
43	190
44	48
45	49
46	198
47	210
48	74
49	226
50	19
51	58
52	238
53	12
54	50
55	8
56	262
57	67
58	270
59	23
60	70

n	a(n)
1	0
2	2
3	1
4	6
5	10
6	3
7	4
8	18
9	22
10	7
11	10
12	9
13	5
14	14
15	46
16	13
17	58
18	15
19	66
20	70
21	18
22	78
23	82
24	22
25	24
26	25
27	102
28	106
29	9
30	7
31	14
32	130
33	17
34	138
35	37
36	30
37	13
38	162
39	166
40	43
41	178
42	45
43	190
44	48
45	49
46	198
47	210
48	74
49	226
50	19
51	58
52	238
53	12
54	50
55	8
56	262
57	67
58	270
59	23
60	70

n	a(n)
1	0
2	2
3	1
4	6
5	10
6	3
7	4
8	18
9	22
10	7
11	10
12	9
13	5
14	14
15	46
16	13
17	58
18	15
19	66
20	70
21	18
22	78
23	82
24	22
25	24
26	25
27	102
28	106
29	9
30	7
31	14
32	130
33	17
34	138
35	37
36	30
37	13
38	162
39	166
40	43
41	178
42	45
43	190
44	48
45	49
46	198
47	210
48	74
49	226
50	19
51	58
52	238
53	12
54	50
55	8
56	262
57	67
58	270
59	23
60	70