A305191 - cp's OEIS frontend

A305191 Table read by rows: T(n,k) is the number of pairs (x,y) mod n such that x^2 + y^2 == k (mod n), for k from 0 to n-1.

n	a(n)
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	0
11	9
12	4
13	4
14	4
15	4
16	2
17	8
18	8
19	2
20	8
21	8
22	1
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	16
31	16
32	0
33	8
34	16
35	0
36	0
37	9
38	12
39	12
40	0
41	12
42	12
43	0
44	12
45	12
46	18
47	8
48	8
49	8
50	8
51	18
52	8
53	8
54	8
55	8
56	1
57	12
58	12
59	12
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	4
68	32
69	16
70	0
71	16
72	32
73	4
74	0
75	16
76	8
77	16
78	0
79	25
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12

[1, 2, 2, 1, 4, 4, 4, 8, 4, 0, 9, 4, 4, 4, 4, 2, 8, 8, 2, 8, 8, 1, 8, 8, 8, 8, 8, 8, 8, 16, 16, 0, 8, 16, 0, 0, 9, 12, 12, 0, 12, 12, 0, 12, 12, 18, 8, 8, 8, 8, 18, 8, 8, 8, 8, 1, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 4, 32, 16, 0, 16, 32, 4, 0, 16, 8, 16, 0, 25, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12]

cp's OEIS Frontend

A305191 Table read by rows: T(n,k) is the number of pairs (x,y) mod n such that x^2 + y^2 == k (mod n), for k from 0 to n-1.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	0
11	9
12	4
13	4
14	4
15	4
16	2
17	8
18	8
19	2
20	8
21	8
22	1
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	16
31	16
32	0
33	8
34	16
35	0
36	0
37	9
38	12
39	12
40	0
41	12
42	12
43	0
44	12
45	12
46	18
47	8
48	8
49	8
50	8
51	18
52	8
53	8
54	8
55	8
56	1
57	12
58	12
59	12
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	4
68	32
69	16
70	0
71	16
72	32
73	4
74	0
75	16
76	8
77	16
78	0
79	25
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12

n	a(n)
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	0
11	9
12	4
13	4
14	4
15	4
16	2
17	8
18	8
19	2
20	8
21	8
22	1
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	16
31	16
32	0
33	8
34	16
35	0
36	0
37	9
38	12
39	12
40	0
41	12
42	12
43	0
44	12
45	12
46	18
47	8
48	8
49	8
50	8
51	18
52	8
53	8
54	8
55	8
56	1
57	12
58	12
59	12
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	4
68	32
69	16
70	0
71	16
72	32
73	4
74	0
75	16
76	8
77	16
78	0
79	25
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12

n	a(n)
1	1
2	2
3	2
4	1
5	4
6	4
7	4
8	8
9	4
10	0
11	9
12	4
13	4
14	4
15	4
16	2
17	8
18	8
19	2
20	8
21	8
22	1
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	16
31	16
32	0
33	8
34	16
35	0
36	0
37	9
38	12
39	12
40	0
41	12
42	12
43	0
44	12
45	12
46	18
47	8
48	8
49	8
50	8
51	18
52	8
53	8
54	8
55	8
56	1
57	12
58	12
59	12
60	12
61	12
62	12
63	12
64	12
65	12
66	12
67	4
68	32
69	16
70	0
71	16
72	32
73	4
74	0
75	16
76	8
77	16
78	0
79	25
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12