A206828 - cp's OEIS frontend

A206828 Number of solutions k of C(2k,k)=C(2n,n) (mod n), where 1<=k

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

[1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 1, 1, 2, 2, 3, 2, 2, 1, 8, 2, 1, 1, 5, 2, 1, 2, 11, 1, 0, 1, 4, 1, 3, 4, 1, 2, 1, 1, 8, 1, 15, 1, 2, 12, 1, 1, 5, 2, 3, 0, 1, 3, 3, 3, 1, 0, 1, 1, 2, 1, 1, 0, 5, 2, 23, 1, 4, 0, 4, 1, 7, 3, 1, 12, 2, 24, 2, 1, 8, 3, 3, 1, 6, 0, 3, 1, 37, 1, 3, 26, 1, 1, 1, 0, 4]

cp's OEIS Frontend

A206828 Number of solutions k of C(2k,k)=C(2n,n) (mod n), where 1<=k

Table of values

List of values

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

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

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