A289772 - cp's OEIS frontend

A289772 a(n) is the numerator of b(n) where b(n) = 1/(3(1+2A112765(n) - b(n-1))) and b(0) = 0, where A112765(n) is the 5-adic valuation of n.

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

[0, 1, 1, 2, 1, 1, 2, 5, 3, 4, 1, 5, 4, 7, 3, 2, 3, 7, 4, 5, 1, 4, 3, 5, 2, 1, 3, 8, 5, 7, 2, 11, 9, 16, 7, 5, 8, 19, 11, 14, 3, 13, 10, 17, 7, 4, 5, 11, 6, 7, 1, 8, 7, 13, 6, 5, 9, 22, 13, 17, 4, 19, 15, 26, 11, 7, 10, 23, 13, 16, 3, 11, 8, 13, 5, 2, 5, 13, 8, 11, 3]

cp's OEIS Frontend

A289772 a(n) is the numerator of b(n) where b(n) = 1/(3(1+2A112765(n) - b(n-1))) and b(0) = 0, where A112765(n) is the 5-adic valuation of n.

Table of values

List of values

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

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

cp's OEIS Frontend

A289772 a(n) is the numerator of b(n) where b(n) = 1/(3*(1+2*A112765(n) - b(n-1))) and b(0) = 0, where A112765(n) is the 5-adic valuation of n.

Table of values

List of values

A289772 a(n) is the numerator of b(n) where b(n) = 1/(3(1+2A112765(n) - b(n-1))) and b(0) = 0, where A112765(n) is the 5-adic valuation of n.

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