A042970 - cp's OEIS frontend

A042970 a(n) = binomial(n, floor(n/2)) mod n.

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

[0, 0, 0, 2, 0, 2, 0, 6, 0, 2, 0, 0, 0, 2, 0, 6, 0, 2, 0, 16, 0, 2, 0, 4, 0, 2, 0, 20, 0, 0, 0, 6, 0, 2, 0, 24, 0, 2, 0, 20, 0, 6, 0, 28, 0, 2, 0, 12, 0, 2, 0, 32, 0, 20, 0, 0, 0, 2, 0, 4, 0, 2, 0, 6, 0, 42, 0, 40, 0, 42, 0, 52, 0, 2, 0, 44, 0, 20, 0, 20, 0, 2, 0, 0, 0, 2, 0, 48, 0, 0, 0, 52, 0, 2, 0]

cp's OEIS Frontend

A042970 a(n) = binomial(n, floor(n/2)) mod n.

Table of values

List of values

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

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

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