A025667 - cp's OEIS frontend

A025667 Exponent of 7 (value of j) in n-th number of form 5^i*7^j.

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

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

cp's OEIS Frontend

A025667 Exponent of 7 (value of j) in n-th number of form 5^i*7^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	3
11	0
12	1
13	2
14	3
15	4
16	0
17	1
18	2
19	3
20	4
21	0
22	5
23	1
24	2
25	3
26	4
27	0
28	5
29	1
30	6
31	2
32	3
33	4
34	0
35	5
36	1
37	6
38	2
39	7
40	3
41	4
42	0
43	5
44	1
45	6
46	2
47	7
48	3
49	8
50	4
51	0
52	5
53	1
54	6
55	2
56	7
57	3
58	8
59	4
60	9
61	0
62	5
63	1
64	6
65	2
66	7
67	3
68	8
69	4
70	9
71	0
72	5
73	10
74	1
75	6
76	2
77	7
78	3
79	8
80	4
81	9
82	0
83	5
84	10
85	1
86	6
87	11
88	2
89	7
90	3
91	8
92	4
93	9
94	0
95	5
96	10
97	1
98	6
99	11
100	2
101	7
102	12
103	3
104	8
105	4

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

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