A025679 - cp's OEIS frontend

A025679 Exponent of 9 (value of j) in n-th number of form 5^i*9^j.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	2
7	0
8	1
9	2
10	0
11	3
12	1
13	2
14	0
15	3
16	1
17	4
18	2
19	0
20	3
21	1
22	4
23	2
24	5
25	0
26	3
27	1
28	4
29	2
30	5
31	0
32	3
33	6
34	1
35	4
36	2
37	5
38	0
39	3
40	6
41	1
42	4
43	7
44	2
45	5
46	0
47	3
48	6
49	1
50	4
51	7
52	2
53	5
54	8
55	0
56	3
57	6
58	1
59	4
60	7
61	2
62	5
63	8
64	0
65	3
66	6
67	9
68	1
69	4
70	7
71	2
72	5
73	8
74	0
75	3
76	6
77	9
78	1
79	4
80	7
81	10
82	2
83	5
84	8
85	0
86	3
87	6
88	9
89	1
90	4
91	7
92	10
93	2
94	5
95	8
96	0
97	11
98	3
99	6
100	9
101	1
102	4
103	7
104	10
105	2
106	5

[0, 0, 1, 0, 1, 2, 0, 1, 2, 0, 3, 1, 2, 0, 3, 1, 4, 2, 0, 3, 1, 4, 2, 5, 0, 3, 1, 4, 2, 5, 0, 3, 6, 1, 4, 2, 5, 0, 3, 6, 1, 4, 7, 2, 5, 0, 3, 6, 1, 4, 7, 2, 5, 8, 0, 3, 6, 1, 4, 7, 2, 5, 8, 0, 3, 6, 9, 1, 4, 7, 2, 5, 8, 0, 3, 6, 9, 1, 4, 7, 10, 2, 5, 8, 0, 3, 6, 9, 1, 4, 7, 10, 2, 5, 8, 0, 11, 3, 6, 9, 1, 4, 7, 10, 2, 5]

cp's OEIS Frontend

A025679 Exponent of 9 (value of j) in n-th number of form 5^i*9^j.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	2
7	0
8	1
9	2
10	0
11	3
12	1
13	2
14	0
15	3
16	1
17	4
18	2
19	0
20	3
21	1
22	4
23	2
24	5
25	0
26	3
27	1
28	4
29	2
30	5
31	0
32	3
33	6
34	1
35	4
36	2
37	5
38	0
39	3
40	6
41	1
42	4
43	7
44	2
45	5
46	0
47	3
48	6
49	1
50	4
51	7
52	2
53	5
54	8
55	0
56	3
57	6
58	1
59	4
60	7
61	2
62	5
63	8
64	0
65	3
66	6
67	9
68	1
69	4
70	7
71	2
72	5
73	8
74	0
75	3
76	6
77	9
78	1
79	4
80	7
81	10
82	2
83	5
84	8
85	0
86	3
87	6
88	9
89	1
90	4
91	7
92	10
93	2
94	5
95	8
96	0
97	11
98	3
99	6
100	9
101	1
102	4
103	7
104	10
105	2
106	5

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	2
7	0
8	1
9	2
10	0
11	3
12	1
13	2
14	0
15	3
16	1
17	4
18	2
19	0
20	3
21	1
22	4
23	2
24	5
25	0
26	3
27	1
28	4
29	2
30	5
31	0
32	3
33	6
34	1
35	4
36	2
37	5
38	0
39	3
40	6
41	1
42	4
43	7
44	2
45	5
46	0
47	3
48	6
49	1
50	4
51	7
52	2
53	5
54	8
55	0
56	3
57	6
58	1
59	4
60	7
61	2
62	5
63	8
64	0
65	3
66	6
67	9
68	1
69	4
70	7
71	2
72	5
73	8
74	0
75	3
76	6
77	9
78	1
79	4
80	7
81	10
82	2
83	5
84	8
85	0
86	3
87	6
88	9
89	1
90	4
91	7
92	10
93	2
94	5
95	8
96	0
97	11
98	3
99	6
100	9
101	1
102	4
103	7
104	10
105	2
106	5

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	2
7	0
8	1
9	2
10	0
11	3
12	1
13	2
14	0
15	3
16	1
17	4
18	2
19	0
20	3
21	1
22	4
23	2
24	5
25	0
26	3
27	1
28	4
29	2
30	5
31	0
32	3
33	6
34	1
35	4
36	2
37	5
38	0
39	3
40	6
41	1
42	4
43	7
44	2
45	5
46	0
47	3
48	6
49	1
50	4
51	7
52	2
53	5
54	8
55	0
56	3
57	6
58	1
59	4
60	7
61	2
62	5
63	8
64	0
65	3
66	6
67	9
68	1
69	4
70	7
71	2
72	5
73	8
74	0
75	3
76	6
77	9
78	1
79	4
80	7
81	10
82	2
83	5
84	8
85	0
86	3
87	6
88	9
89	1
90	4
91	7
92	10
93	2
94	5
95	8
96	0
97	11
98	3
99	6
100	9
101	1
102	4
103	7
104	10
105	2
106	5