A248222 - cp's OEIS frontend

A248222 Maximal gap between quadratic residues mod n.

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

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

cp's OEIS Frontend

A248222 Maximal gap between quadratic residues mod n.

Table of values

List of values

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

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

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