A025665 - cp's OEIS frontend

A025665 Exponent of 7 (value of j) in n-th number of form 3^i*7^j.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	2
8	1
9	0
10	2
11	1
12	0
13	3
14	2
15	1
16	0
17	3
18	2
19	1
20	0
21	4
22	3
23	2
24	1
25	0
26	4
27	3
28	2
29	1
30	5
31	0
32	4
33	3
34	2
35	1
36	5
37	0
38	4
39	3
40	2
41	6
42	1
43	5
44	0
45	4
46	3
47	2
48	6
49	1
50	5
51	0
52	4
53	3
54	7
55	2
56	6
57	1
58	5
59	0
60	4
61	3
62	7
63	2
64	6
65	1
66	5
67	0
68	4
69	8
70	3
71	7
72	2
73	6
74	1
75	5
76	0
77	4
78	8
79	3
80	7
81	2
82	6
83	1
84	5
85	9
86	0
87	4
88	8
89	3
90	7
91	2
92	6
93	1
94	5
95	9
96	0
97	4
98	8
99	3
100	7
101	2
102	6
103	10
104	1
105	5
106	9
107	0

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

cp's OEIS Frontend

A025665 Exponent of 7 (value of j) in n-th number of form 3^i*7^j.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	2
8	1
9	0
10	2
11	1
12	0
13	3
14	2
15	1
16	0
17	3
18	2
19	1
20	0
21	4
22	3
23	2
24	1
25	0
26	4
27	3
28	2
29	1
30	5
31	0
32	4
33	3
34	2
35	1
36	5
37	0
38	4
39	3
40	2
41	6
42	1
43	5
44	0
45	4
46	3
47	2
48	6
49	1
50	5
51	0
52	4
53	3
54	7
55	2
56	6
57	1
58	5
59	0
60	4
61	3
62	7
63	2
64	6
65	1
66	5
67	0
68	4
69	8
70	3
71	7
72	2
73	6
74	1
75	5
76	0
77	4
78	8
79	3
80	7
81	2
82	6
83	1
84	5
85	9
86	0
87	4
88	8
89	3
90	7
91	2
92	6
93	1
94	5
95	9
96	0
97	4
98	8
99	3
100	7
101	2
102	6
103	10
104	1
105	5
106	9
107	0

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	2
8	1
9	0
10	2
11	1
12	0
13	3
14	2
15	1
16	0
17	3
18	2
19	1
20	0
21	4
22	3
23	2
24	1
25	0
26	4
27	3
28	2
29	1
30	5
31	0
32	4
33	3
34	2
35	1
36	5
37	0
38	4
39	3
40	2
41	6
42	1
43	5
44	0
45	4
46	3
47	2
48	6
49	1
50	5
51	0
52	4
53	3
54	7
55	2
56	6
57	1
58	5
59	0
60	4
61	3
62	7
63	2
64	6
65	1
66	5
67	0
68	4
69	8
70	3
71	7
72	2
73	6
74	1
75	5
76	0
77	4
78	8
79	3
80	7
81	2
82	6
83	1
84	5
85	9
86	0
87	4
88	8
89	3
90	7
91	2
92	6
93	1
94	5
95	9
96	0
97	4
98	8
99	3
100	7
101	2
102	6
103	10
104	1
105	5
106	9
107	0

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	2
8	1
9	0
10	2
11	1
12	0
13	3
14	2
15	1
16	0
17	3
18	2
19	1
20	0
21	4
22	3
23	2
24	1
25	0
26	4
27	3
28	2
29	1
30	5
31	0
32	4
33	3
34	2
35	1
36	5
37	0
38	4
39	3
40	2
41	6
42	1
43	5
44	0
45	4
46	3
47	2
48	6
49	1
50	5
51	0
52	4
53	3
54	7
55	2
56	6
57	1
58	5
59	0
60	4
61	3
62	7
63	2
64	6
65	1
66	5
67	0
68	4
69	8
70	3
71	7
72	2
73	6
74	1
75	5
76	0
77	4
78	8
79	3
80	7
81	2
82	6
83	1
84	5
85	9
86	0
87	4
88	8
89	3
90	7
91	2
92	6
93	1
94	5
95	9
96	0
97	4
98	8
99	3
100	7
101	2
102	6
103	10
104	1
105	5
106	9
107	0