A049810 - cp's OEIS frontend

A049810 a(n)=number of Farey fractions of order n that are <=1/6; cf. A049805.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	6
11	7
12	8
13	10
14	11
15	13
16	14
17	16
18	17
19	20
20	22
21	24
22	26
23	29
24	30
25	34
26	36
27	39
28	41
29	45
30	46
31	51
32	54
33	58
34	61
35	65
36	67
37	73
38	76
39	80
40	82
41	88
42	90
43	97
44	101
45	105
46	109
47	116
48	119
49	126
50	129
51	135
52	139
53	147
54	150
55	158
56	162
57	168
58	173
59	182

[1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 16, 17, 20, 22, 24, 26, 29, 30, 34, 36, 39, 41, 45, 46, 51, 54, 58, 61, 65, 67, 73, 76, 80, 82, 88, 90, 97, 101, 105, 109, 116, 119, 126, 129, 135, 139, 147, 150, 158, 162, 168, 173, 182]

cp's OEIS Frontend

A049810 a(n)=number of Farey fractions of order n that are <=1/6; cf. A049805.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	6
11	7
12	8
13	10
14	11
15	13
16	14
17	16
18	17
19	20
20	22
21	24
22	26
23	29
24	30
25	34
26	36
27	39
28	41
29	45
30	46
31	51
32	54
33	58
34	61
35	65
36	67
37	73
38	76
39	80
40	82
41	88
42	90
43	97
44	101
45	105
46	109
47	116
48	119
49	126
50	129
51	135
52	139
53	147
54	150
55	158
56	162
57	168
58	173
59	182

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	6
11	7
12	8
13	10
14	11
15	13
16	14
17	16
18	17
19	20
20	22
21	24
22	26
23	29
24	30
25	34
26	36
27	39
28	41
29	45
30	46
31	51
32	54
33	58
34	61
35	65
36	67
37	73
38	76
39	80
40	82
41	88
42	90
43	97
44	101
45	105
46	109
47	116
48	119
49	126
50	129
51	135
52	139
53	147
54	150
55	158
56	162
57	168
58	173
59	182

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	6
11	7
12	8
13	10
14	11
15	13
16	14
17	16
18	17
19	20
20	22
21	24
22	26
23	29
24	30
25	34
26	36
27	39
28	41
29	45
30	46
31	51
32	54
33	58
34	61
35	65
36	67
37	73
38	76
39	80
40	82
41	88
42	90
43	97
44	101
45	105
46	109
47	116
48	119
49	126
50	129
51	135
52	139
53	147
54	150
55	158
56	162
57	168
58	173
59	182