A112765 - cp's OEIS frontend

A112765 Exponent of highest power of 5 dividing n. Or, 5-adic valuation of n.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	0
9	0
10	1
11	0
12	0
13	0
14	0
15	1
16	0
17	0
18	0
19	0
20	1
21	0
22	0
23	0
24	0
25	2
26	0
27	0
28	0
29	0
30	1
31	0
32	0
33	0
34	0
35	1
36	0
37	0
38	0
39	0
40	1
41	0
42	0
43	0
44	0
45	1
46	0
47	0
48	0
49	0
50	2
51	0
52	0
53	0
54	0
55	1
56	0
57	0
58	0
59	0
60	1
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	1
71	0
72	0
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	1
81	0
82	0
83	0
84	0
85	1
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	1
96	0
97	0
98	0
99	0
100	2
101	0
102	0
103	0
104	0
105	1

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

cp's OEIS Frontend

A112765 Exponent of highest power of 5 dividing n. Or, 5-adic valuation of n.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	0
9	0
10	1
11	0
12	0
13	0
14	0
15	1
16	0
17	0
18	0
19	0
20	1
21	0
22	0
23	0
24	0
25	2
26	0
27	0
28	0
29	0
30	1
31	0
32	0
33	0
34	0
35	1
36	0
37	0
38	0
39	0
40	1
41	0
42	0
43	0
44	0
45	1
46	0
47	0
48	0
49	0
50	2
51	0
52	0
53	0
54	0
55	1
56	0
57	0
58	0
59	0
60	1
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	1
71	0
72	0
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	1
81	0
82	0
83	0
84	0
85	1
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	1
96	0
97	0
98	0
99	0
100	2
101	0
102	0
103	0
104	0
105	1

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	0
9	0
10	1
11	0
12	0
13	0
14	0
15	1
16	0
17	0
18	0
19	0
20	1
21	0
22	0
23	0
24	0
25	2
26	0
27	0
28	0
29	0
30	1
31	0
32	0
33	0
34	0
35	1
36	0
37	0
38	0
39	0
40	1
41	0
42	0
43	0
44	0
45	1
46	0
47	0
48	0
49	0
50	2
51	0
52	0
53	0
54	0
55	1
56	0
57	0
58	0
59	0
60	1
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	1
71	0
72	0
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	1
81	0
82	0
83	0
84	0
85	1
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	1
96	0
97	0
98	0
99	0
100	2
101	0
102	0
103	0
104	0
105	1

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	0
9	0
10	1
11	0
12	0
13	0
14	0
15	1
16	0
17	0
18	0
19	0
20	1
21	0
22	0
23	0
24	0
25	2
26	0
27	0
28	0
29	0
30	1
31	0
32	0
33	0
34	0
35	1
36	0
37	0
38	0
39	0
40	1
41	0
42	0
43	0
44	0
45	1
46	0
47	0
48	0
49	0
50	2
51	0
52	0
53	0
54	0
55	1
56	0
57	0
58	0
59	0
60	1
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	1
71	0
72	0
73	0
74	0
75	2
76	0
77	0
78	0
79	0
80	1
81	0
82	0
83	0
84	0
85	1
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	1
96	0
97	0
98	0
99	0
100	2
101	0
102	0
103	0
104	0
105	1