A038569 - cp's OEIS frontend

A038569 Denominators in a certain bijection from positive integers to positive rationals.

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

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

cp's OEIS Frontend

A038569 Denominators in a certain bijection from positive integers to positive rationals.

Table of values

List of values

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

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

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