A376756 - cp's OEIS frontend

A376756 Number of pairs 0 <= x <= y <= n-1 such that x^2 + x*y + y^2 == 0 (mod n).

n	a(n)
1	1
2	1
3	3
4	3
5	1
6	3
7	7
8	3
9	6
10	1
11	1
12	9
13	13
14	7
15	3
16	10
17	1
18	6
19	19
20	3
21	21
22	1
23	1
24	9
25	15
26	13
27	18
28	27
29	1
30	3
31	31
32	10
33	3
34	1
35	7
36	21
37	37
38	19
39	39
40	3
41	1
42	21
43	43
44	3
45	6
46	1
47	1
48	30
49	70
50	15
51	3
52	51
53	1
54	18
55	1
56	27
57	57
58	1
59	1
60	9
61	61
62	31
63	60
64	36
65	13
66	3
67	67
68	3
69	3
70	7
71	1
72	21
73	73
74	37
75	45
76	75
77	7
78	39
79	79
80	10
81	45
82	1
83	1
84	81
85	1
86	43
87	3
88	3
89	1
90	6
91	163
92	3
93	93
94	1
95	19
96	30
97	97

[1, 1, 3, 3, 1, 3, 7, 3, 6, 1, 1, 9, 13, 7, 3, 10, 1, 6, 19, 3, 21, 1, 1, 9, 15, 13, 18, 27, 1, 3, 31, 10, 3, 1, 7, 21, 37, 19, 39, 3, 1, 21, 43, 3, 6, 1, 1, 30, 70, 15, 3, 51, 1, 18, 1, 27, 57, 1, 1, 9, 61, 31, 60, 36, 13, 3, 67, 3, 3, 7, 1, 21, 73, 37, 45, 75, 7, 39, 79, 10, 45, 1, 1, 81, 1, 43, 3, 3, 1, 6, 163, 3, 93, 1, 19, 30, 97]

cp's OEIS Frontend

A376756 Number of pairs 0 <= x <= y <= n-1 such that x^2 + x*y + y^2 == 0 (mod n).

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	3
5	1
6	3
7	7
8	3
9	6
10	1
11	1
12	9
13	13
14	7
15	3
16	10
17	1
18	6
19	19
20	3
21	21
22	1
23	1
24	9
25	15
26	13
27	18
28	27
29	1
30	3
31	31
32	10
33	3
34	1
35	7
36	21
37	37
38	19
39	39
40	3
41	1
42	21
43	43
44	3
45	6
46	1
47	1
48	30
49	70
50	15
51	3
52	51
53	1
54	18
55	1
56	27
57	57
58	1
59	1
60	9
61	61
62	31
63	60
64	36
65	13
66	3
67	67
68	3
69	3
70	7
71	1
72	21
73	73
74	37
75	45
76	75
77	7
78	39
79	79
80	10
81	45
82	1
83	1
84	81
85	1
86	43
87	3
88	3
89	1
90	6
91	163
92	3
93	93
94	1
95	19
96	30
97	97

n	a(n)
1	1
2	1
3	3
4	3
5	1
6	3
7	7
8	3
9	6
10	1
11	1
12	9
13	13
14	7
15	3
16	10
17	1
18	6
19	19
20	3
21	21
22	1
23	1
24	9
25	15
26	13
27	18
28	27
29	1
30	3
31	31
32	10
33	3
34	1
35	7
36	21
37	37
38	19
39	39
40	3
41	1
42	21
43	43
44	3
45	6
46	1
47	1
48	30
49	70
50	15
51	3
52	51
53	1
54	18
55	1
56	27
57	57
58	1
59	1
60	9
61	61
62	31
63	60
64	36
65	13
66	3
67	67
68	3
69	3
70	7
71	1
72	21
73	73
74	37
75	45
76	75
77	7
78	39
79	79
80	10
81	45
82	1
83	1
84	81
85	1
86	43
87	3
88	3
89	1
90	6
91	163
92	3
93	93
94	1
95	19
96	30
97	97

n	a(n)
1	1
2	1
3	3
4	3
5	1
6	3
7	7
8	3
9	6
10	1
11	1
12	9
13	13
14	7
15	3
16	10
17	1
18	6
19	19
20	3
21	21
22	1
23	1
24	9
25	15
26	13
27	18
28	27
29	1
30	3
31	31
32	10
33	3
34	1
35	7
36	21
37	37
38	19
39	39
40	3
41	1
42	21
43	43
44	3
45	6
46	1
47	1
48	30
49	70
50	15
51	3
52	51
53	1
54	18
55	1
56	27
57	57
58	1
59	1
60	9
61	61
62	31
63	60
64	36
65	13
66	3
67	67
68	3
69	3
70	7
71	1
72	21
73	73
74	37
75	45
76	75
77	7
78	39
79	79
80	10
81	45
82	1
83	1
84	81
85	1
86	43
87	3
88	3
89	1
90	6
91	163
92	3
93	93
94	1
95	19
96	30
97	97