A056056 - cp's OEIS frontend

A056056 Square root of largest square dividing n-th central binomial coefficient.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	3
10	6
11	1
12	2
13	2
14	2
15	3
16	3
17	1
18	2
19	1
20	2
21	2
22	2
23	1
24	2
25	10
26	10
27	30
28	30
29	6
30	12
31	3
32	3
33	3
34	6
35	5
36	10
37	10
38	10
39	3
40	6
41	2
42	2
43	2
44	2
45	30
46	60
47	15
48	30
49	42
50	42
51	42
52	42
53	14
54	28
55	2
56	2
57	2
58	4
59	2
60	4
61	4
62	4
63	21
64	21
65	7
66	14
67	7
68	14
69	6
70	6
71	1
72	2
73	2
74	2
75	10
76	10
77	70
78	140
79	7
80	14
81	126
82	126
83	6
84	6
85	30
86	60

[1, 1, 1, 1, 1, 2, 1, 1, 3, 6, 1, 2, 2, 2, 3, 3, 1, 2, 1, 2, 2, 2, 1, 2, 10, 10, 30, 30, 6, 12, 3, 3, 3, 6, 5, 10, 10, 10, 3, 6, 2, 2, 2, 2, 30, 60, 15, 30, 42, 42, 42, 42, 14, 28, 2, 2, 2, 4, 2, 4, 4, 4, 21, 21, 7, 14, 7, 14, 6, 6, 1, 2, 2, 2, 10, 10, 70, 140, 7, 14, 126, 126, 6, 6, 30, 60]

cp's OEIS Frontend

A056056 Square root of largest square dividing n-th central binomial coefficient.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	3
10	6
11	1
12	2
13	2
14	2
15	3
16	3
17	1
18	2
19	1
20	2
21	2
22	2
23	1
24	2
25	10
26	10
27	30
28	30
29	6
30	12
31	3
32	3
33	3
34	6
35	5
36	10
37	10
38	10
39	3
40	6
41	2
42	2
43	2
44	2
45	30
46	60
47	15
48	30
49	42
50	42
51	42
52	42
53	14
54	28
55	2
56	2
57	2
58	4
59	2
60	4
61	4
62	4
63	21
64	21
65	7
66	14
67	7
68	14
69	6
70	6
71	1
72	2
73	2
74	2
75	10
76	10
77	70
78	140
79	7
80	14
81	126
82	126
83	6
84	6
85	30
86	60

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	3
10	6
11	1
12	2
13	2
14	2
15	3
16	3
17	1
18	2
19	1
20	2
21	2
22	2
23	1
24	2
25	10
26	10
27	30
28	30
29	6
30	12
31	3
32	3
33	3
34	6
35	5
36	10
37	10
38	10
39	3
40	6
41	2
42	2
43	2
44	2
45	30
46	60
47	15
48	30
49	42
50	42
51	42
52	42
53	14
54	28
55	2
56	2
57	2
58	4
59	2
60	4
61	4
62	4
63	21
64	21
65	7
66	14
67	7
68	14
69	6
70	6
71	1
72	2
73	2
74	2
75	10
76	10
77	70
78	140
79	7
80	14
81	126
82	126
83	6
84	6
85	30
86	60

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	3
10	6
11	1
12	2
13	2
14	2
15	3
16	3
17	1
18	2
19	1
20	2
21	2
22	2
23	1
24	2
25	10
26	10
27	30
28	30
29	6
30	12
31	3
32	3
33	3
34	6
35	5
36	10
37	10
38	10
39	3
40	6
41	2
42	2
43	2
44	2
45	30
46	60
47	15
48	30
49	42
50	42
51	42
52	42
53	14
54	28
55	2
56	2
57	2
58	4
59	2
60	4
61	4
62	4
63	21
64	21
65	7
66	14
67	7
68	14
69	6
70	6
71	1
72	2
73	2
74	2
75	10
76	10
77	70
78	140
79	7
80	14
81	126
82	126
83	6
84	6
85	30
86	60