A000999 - cp's OEIS frontend

A000999 5-adic valuation of binomial(2n,n): largest k such that 5^k divides binomial(2n, n).

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

[0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 3, 3, 2, 2, 2, 3, 3, 2, 2, 2, 3, 3, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1]

cp's OEIS Frontend

A000999 5-adic valuation of binomial(2n,n): largest k such that 5^k divides binomial(2n, n).

Table of values

List of values

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

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

cp's OEIS Frontend

A000999 5-adic valuation of binomial(2*n,n): largest k such that 5^k divides binomial(2*n, n).

Table of values

List of values

A000999 5-adic valuation of binomial(2n,n): largest k such that 5^k divides binomial(2n, n).

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