A025654 - cp's OEIS frontend

A025654 Exponent of 5 (value of i) in n-th number of form 5^i*9^j.

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

[0, 1, 0, 2, 1, 0, 3, 2, 1, 4, 0, 3, 2, 5, 1, 4, 0, 3, 6, 2, 5, 1, 4, 0, 7, 3, 6, 2, 5, 1, 8, 4, 0, 7, 3, 6, 2, 9, 5, 1, 8, 4, 0, 7, 3, 10, 6, 2, 9, 5, 1, 8, 4, 0, 11, 7, 3, 10, 6, 2, 9, 5, 1, 12, 8, 4, 0, 11, 7, 3, 10, 6, 2, 13, 9, 5, 1, 12, 8, 4, 0, 11, 7, 3, 14, 10, 6, 2, 13, 9, 5, 1, 12, 8, 4, 15, 0, 11, 7, 3]

cp's OEIS Frontend

A025654 Exponent of 5 (value of i) in n-th number of form 5^i*9^j.

Table of values

List of values

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

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

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