A153162 - cp's OEIS frontend

A153162 Denominators of Stern-Brocot tree hanging between 1/3 and 2/3; numerators=A153161.

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

[2, 5, 5, 8, 7, 7, 8, 11, 13, 12, 9, 9, 12, 13, 11, 14, 19, 21, 18, 17, 19, 16, 11, 11, 16, 19, 17, 18, 21, 19, 14, 17, 25, 30, 27, 29, 34, 31, 23, 22, 29, 31, 26, 23, 25, 20, 13, 13, 20, 25, 23, 26, 31, 29, 22, 23, 31, 34, 29, 27, 30, 25, 17, 20, 31, 39, 36, 41, 49, 46, 35, 37]

cp's OEIS Frontend

A153162 Denominators of Stern-Brocot tree hanging between 1/3 and 2/3; numerators=A153161.

Table of values

List of values

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

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

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