A096008 - cp's OEIS frontend

A096008 Irregular triangle read by rows where n-th row contains all quadratic residues (including zero) mod n.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	1
10	4
11	0
12	1
13	3
14	4
15	0
16	1
17	2
18	4
19	0
20	1
21	4
22	0
23	1
24	4
25	7
26	0
27	1
28	4
29	5
30	6
31	9
32	0
33	1
34	3
35	4
36	5
37	9
38	0
39	1
40	4
41	9
42	0
43	1
44	3
45	4
46	9
47	10
48	12
49	0
50	1
51	2
52	4
53	7
54	8
55	9
56	11
57	0
58	1
59	4
60	6
61	9
62	10
63	0
64	1
65	4
66	9
67	0
68	1
69	2
70	4
71	8
72	9
73	13
74	15
75	16
76	0
77	1
78	4
79	7
80	9
81	10
82	13
83	16
84	0
85	1
86	4
87	5
88	6
89	7
90	9
91	11
92	16
93	17
94	0
95	1
96	4
97	5
98	9
99	16

[0, 0, 1, 0, 1, 0, 1, 0, 1, 4, 0, 1, 3, 4, 0, 1, 2, 4, 0, 1, 4, 0, 1, 4, 7, 0, 1, 4, 5, 6, 9, 0, 1, 3, 4, 5, 9, 0, 1, 4, 9, 0, 1, 3, 4, 9, 10, 12, 0, 1, 2, 4, 7, 8, 9, 11, 0, 1, 4, 6, 9, 10, 0, 1, 4, 9, 0, 1, 2, 4, 8, 9, 13, 15, 16, 0, 1, 4, 7, 9, 10, 13, 16, 0, 1, 4, 5, 6, 7, 9, 11, 16, 17, 0, 1, 4, 5, 9, 16]

cp's OEIS Frontend

A096008 Irregular triangle read by rows where n-th row contains all quadratic residues (including zero) mod n.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	1
10	4
11	0
12	1
13	3
14	4
15	0
16	1
17	2
18	4
19	0
20	1
21	4
22	0
23	1
24	4
25	7
26	0
27	1
28	4
29	5
30	6
31	9
32	0
33	1
34	3
35	4
36	5
37	9
38	0
39	1
40	4
41	9
42	0
43	1
44	3
45	4
46	9
47	10
48	12
49	0
50	1
51	2
52	4
53	7
54	8
55	9
56	11
57	0
58	1
59	4
60	6
61	9
62	10
63	0
64	1
65	4
66	9
67	0
68	1
69	2
70	4
71	8
72	9
73	13
74	15
75	16
76	0
77	1
78	4
79	7
80	9
81	10
82	13
83	16
84	0
85	1
86	4
87	5
88	6
89	7
90	9
91	11
92	16
93	17
94	0
95	1
96	4
97	5
98	9
99	16

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	1
10	4
11	0
12	1
13	3
14	4
15	0
16	1
17	2
18	4
19	0
20	1
21	4
22	0
23	1
24	4
25	7
26	0
27	1
28	4
29	5
30	6
31	9
32	0
33	1
34	3
35	4
36	5
37	9
38	0
39	1
40	4
41	9
42	0
43	1
44	3
45	4
46	9
47	10
48	12
49	0
50	1
51	2
52	4
53	7
54	8
55	9
56	11
57	0
58	1
59	4
60	6
61	9
62	10
63	0
64	1
65	4
66	9
67	0
68	1
69	2
70	4
71	8
72	9
73	13
74	15
75	16
76	0
77	1
78	4
79	7
80	9
81	10
82	13
83	16
84	0
85	1
86	4
87	5
88	6
89	7
90	9
91	11
92	16
93	17
94	0
95	1
96	4
97	5
98	9
99	16

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	1
10	4
11	0
12	1
13	3
14	4
15	0
16	1
17	2
18	4
19	0
20	1
21	4
22	0
23	1
24	4
25	7
26	0
27	1
28	4
29	5
30	6
31	9
32	0
33	1
34	3
35	4
36	5
37	9
38	0
39	1
40	4
41	9
42	0
43	1
44	3
45	4
46	9
47	10
48	12
49	0
50	1
51	2
52	4
53	7
54	8
55	9
56	11
57	0
58	1
59	4
60	6
61	9
62	10
63	0
64	1
65	4
66	9
67	0
68	1
69	2
70	4
71	8
72	9
73	13
74	15
75	16
76	0
77	1
78	4
79	7
80	9
81	10
82	13
83	16
84	0
85	1
86	4
87	5
88	6
89	7
90	9
91	11
92	16
93	17
94	0
95	1
96	4
97	5
98	9
99	16