A119688 - cp's OEIS frontend

A119688 a(n) = n!! mod (n+1).

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

[1, 2, 3, 3, 3, 6, 1, 6, 5, 1, 3, 8, 7, 0, 1, 13, 9, 1, 15, 0, 11, 1, 9, 0, 13, 0, 7, 17, 15, 1, 1, 0, 17, 0, 27, 6, 19, 0, 25, 9, 21, 1, 11, 0, 23, 46, 33, 0, 25, 0, 39, 30, 27, 0, 49, 0, 29, 58, 15, 50, 31, 0, 1, 0, 33, 1, 51, 0, 35, 1, 9, 27, 37, 0, 19, 0, 39, 78, 65, 0, 41, 82, 63, 0]

cp's OEIS Frontend

A119688 a(n) = n!! mod (n+1).

Table of values

List of values

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

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

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