A053761 - cp's OEIS frontend

A053761 Least positive integer k for which the Jacobi symbol (k|2n-1) is less than 1, where 2n-1 is a nonsquare; a(n)=0 if 2*n-1 is a square.

n	a(n)
1	0
2	2
3	2
4	3
5	0
6	2
7	2
8	3
9	3
10	2
11	2
12	5
13	0
14	2
15	2
16	3
17	3
18	2
19	2
20	3
21	3
22	2
23	2
24	5
25	0
26	2
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	2
35	2
36	7
37	5
38	2
39	2
40	3
41	0
42	2
43	2
44	3
45	3
46	2
47	2
48	5
49	5
50	2
51	2
52	3
53	3
54	2
55	2
56	3
57	3
58	2
59	2
60	7
61	0
62	2
63	2
64	3
65	3
66	2
67	2
68	3
69	3
70	2
71	2
72	5
73	5
74	2
75	2
76	3
77	3
78	2
79	2
80	3
81	3
82	2
83	2
84	5
85	0
86	2
87	2
88	3
89	3
90	2
91	2
92	3
93	3
94	2
95	2
96	7
97	5
98	2
99	2
100	3

[0, 2, 2, 3, 0, 2, 2, 3, 3, 2, 2, 5, 0, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 5, 0, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 7, 5, 2, 2, 3, 0, 2, 2, 3, 3, 2, 2, 5, 5, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 7, 0, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 5, 5, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 5, 0, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 7, 5, 2, 2, 3]

cp's OEIS Frontend

A053761 Least positive integer k for which the Jacobi symbol (k|2n-1) is less than 1, where 2n-1 is a nonsquare; a(n)=0 if 2*n-1 is a square.

Table of values

List of values

n	a(n)
1	0
2	2
3	2
4	3
5	0
6	2
7	2
8	3
9	3
10	2
11	2
12	5
13	0
14	2
15	2
16	3
17	3
18	2
19	2
20	3
21	3
22	2
23	2
24	5
25	0
26	2
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	2
35	2
36	7
37	5
38	2
39	2
40	3
41	0
42	2
43	2
44	3
45	3
46	2
47	2
48	5
49	5
50	2
51	2
52	3
53	3
54	2
55	2
56	3
57	3
58	2
59	2
60	7
61	0
62	2
63	2
64	3
65	3
66	2
67	2
68	3
69	3
70	2
71	2
72	5
73	5
74	2
75	2
76	3
77	3
78	2
79	2
80	3
81	3
82	2
83	2
84	5
85	0
86	2
87	2
88	3
89	3
90	2
91	2
92	3
93	3
94	2
95	2
96	7
97	5
98	2
99	2
100	3

n	a(n)
1	0
2	2
3	2
4	3
5	0
6	2
7	2
8	3
9	3
10	2
11	2
12	5
13	0
14	2
15	2
16	3
17	3
18	2
19	2
20	3
21	3
22	2
23	2
24	5
25	0
26	2
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	2
35	2
36	7
37	5
38	2
39	2
40	3
41	0
42	2
43	2
44	3
45	3
46	2
47	2
48	5
49	5
50	2
51	2
52	3
53	3
54	2
55	2
56	3
57	3
58	2
59	2
60	7
61	0
62	2
63	2
64	3
65	3
66	2
67	2
68	3
69	3
70	2
71	2
72	5
73	5
74	2
75	2
76	3
77	3
78	2
79	2
80	3
81	3
82	2
83	2
84	5
85	0
86	2
87	2
88	3
89	3
90	2
91	2
92	3
93	3
94	2
95	2
96	7
97	5
98	2
99	2
100	3

cp's OEIS Frontend

A053761 Least positive integer k for which the Jacobi symbol (k|2*n-1) is less than 1, where 2*n-1 is a nonsquare; a(n)=0 if 2*n-1 is a square.

Table of values

List of values

A053761 Least positive integer k for which the Jacobi symbol (k|2n-1) is less than 1, where 2n-1 is a nonsquare; a(n)=0 if 2*n-1 is a square.

n	a(n)
1	0
2	2
3	2
4	3
5	0
6	2
7	2
8	3
9	3
10	2
11	2
12	5
13	0
14	2
15	2
16	3
17	3
18	2
19	2
20	3
21	3
22	2
23	2
24	5
25	0
26	2
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	2
35	2
36	7
37	5
38	2
39	2
40	3
41	0
42	2
43	2
44	3
45	3
46	2
47	2
48	5
49	5
50	2
51	2
52	3
53	3
54	2
55	2
56	3
57	3
58	2
59	2
60	7
61	0
62	2
63	2
64	3
65	3
66	2
67	2
68	3
69	3
70	2
71	2
72	5
73	5
74	2
75	2
76	3
77	3
78	2
79	2
80	3
81	3
82	2
83	2
84	5
85	0
86	2
87	2
88	3
89	3
90	2
91	2
92	3
93	3
94	2
95	2
96	7
97	5
98	2
99	2
100	3