A167415 - cp's OEIS frontend

A167415 Positive integers k such that there is no solution of the equation x^2 + y^2 + 3xy = 0 in Z/nZ except for the trivial one (0,0).

n	a(n)
1	2
2	3
3	6
4	7
5	13
6	14
7	17
8	21
9	23
10	26
11	34
12	37
13	39
14	42
15	43
16	46
17	47
18	51
19	53
20	67
21	69
22	73
23	74
24	78
25	83
26	86
27	91
28	94
29	97
30	102
31	103
32	106
33	107
34	111
35	113
36	119
37	127
38	129
39	134
40	137
41	138
42	141
43	146
44	157
45	159
46	161
47	163
48	166
49	167
50	173
51	182
52	193
53	194
54	197
55	201
56	206
57	214
58	219

[2, 3, 6, 7, 13, 14, 17, 21, 23, 26, 34, 37, 39, 42, 43, 46, 47, 51, 53, 67, 69, 73, 74, 78, 83, 86, 91, 94, 97, 102, 103, 106, 107, 111, 113, 119, 127, 129, 134, 137, 138, 141, 146, 157, 159, 161, 163, 166, 167, 173, 182, 193, 194, 197, 201, 206, 214, 219]

cp's OEIS Frontend

A167415 Positive integers k such that there is no solution of the equation x^2 + y^2 + 3xy = 0 in Z/nZ except for the trivial one (0,0).

Table of values

List of values

n	a(n)
1	2
2	3
3	6
4	7
5	13
6	14
7	17
8	21
9	23
10	26
11	34
12	37
13	39
14	42
15	43
16	46
17	47
18	51
19	53
20	67
21	69
22	73
23	74
24	78
25	83
26	86
27	91
28	94
29	97
30	102
31	103
32	106
33	107
34	111
35	113
36	119
37	127
38	129
39	134
40	137
41	138
42	141
43	146
44	157
45	159
46	161
47	163
48	166
49	167
50	173
51	182
52	193
53	194
54	197
55	201
56	206
57	214
58	219

n	a(n)
1	2
2	3
3	6
4	7
5	13
6	14
7	17
8	21
9	23
10	26
11	34
12	37
13	39
14	42
15	43
16	46
17	47
18	51
19	53
20	67
21	69
22	73
23	74
24	78
25	83
26	86
27	91
28	94
29	97
30	102
31	103
32	106
33	107
34	111
35	113
36	119
37	127
38	129
39	134
40	137
41	138
42	141
43	146
44	157
45	159
46	161
47	163
48	166
49	167
50	173
51	182
52	193
53	194
54	197
55	201
56	206
57	214
58	219

cp's OEIS Frontend

A167415 Positive integers k such that there is no solution of the equation x^2 + y^2 + 3*x*y = 0 in Z/nZ except for the trivial one (0,0).

Table of values

List of values

A167415 Positive integers k such that there is no solution of the equation x^2 + y^2 + 3xy = 0 in Z/nZ except for the trivial one (0,0).

n	a(n)
1	2
2	3
3	6
4	7
5	13
6	14
7	17
8	21
9	23
10	26
11	34
12	37
13	39
14	42
15	43
16	46
17	47
18	51
19	53
20	67
21	69
22	73
23	74
24	78
25	83
26	86
27	91
28	94
29	97
30	102
31	103
32	106
33	107
34	111
35	113
36	119
37	127
38	129
39	134
40	137
41	138
42	141
43	146
44	157
45	159
46	161
47	163
48	166
49	167
50	173
51	182
52	193
53	194
54	197
55	201
56	206
57	214
58	219