A333461 - cp's OEIS frontend

A333461 a(n) = gcd(2n, binomial(2n,n))/2.

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

[1, 1, 1, 1, 1, 6, 1, 1, 1, 2, 1, 2, 1, 2, 15, 1, 1, 6, 1, 10, 3, 2, 1, 6, 1, 2, 1, 28, 1, 2, 1, 1, 3, 2, 7, 2, 1, 2, 1, 10, 1, 42, 1, 4, 45, 2, 1, 6, 1, 2, 3, 4, 1, 6, 1, 4, 3, 2, 1, 12, 1, 2, 3, 1, 5, 66, 1, 2, 3, 10, 1, 18, 1, 2, 15, 4, 77, 6, 1, 10, 1, 2]

cp's OEIS Frontend

A333461 a(n) = gcd(2n, binomial(2n,n))/2.

Table of values

List of values

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

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

cp's OEIS Frontend

A333461 a(n) = gcd(2*n, binomial(2*n,n))/2.

Table of values

List of values

A333461 a(n) = gcd(2n, binomial(2n,n))/2.

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