A049811 - cp's OEIS frontend

A049811 a(n)=number of Farey fractions of order n that are <=1/7; cf. A049805.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	3
9	4
10	5
11	6
12	7
13	8
14	9
15	11
16	12
17	14
18	15
19	17
20	18
21	20
22	22
23	25
24	26
25	29
26	31
27	33
28	35
29	39
30	40
31	44
32	46
33	49
34	51
35	55
36	57
37	62
38	65
39	69
40	71
41	76
42	78
43	84
44	87
45	90
46	93
47	99
48	101
49	107
50	110
51	115
52	119
53	126
54	129
55	135
56	138
57	144
58	148
59	156
60	158

[1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 15, 17, 18, 20, 22, 25, 26, 29, 31, 33, 35, 39, 40, 44, 46, 49, 51, 55, 57, 62, 65, 69, 71, 76, 78, 84, 87, 90, 93, 99, 101, 107, 110, 115, 119, 126, 129, 135, 138, 144, 148, 156, 158]

cp's OEIS Frontend

A049811 a(n)=number of Farey fractions of order n that are <=1/7; cf. A049805.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	3
9	4
10	5
11	6
12	7
13	8
14	9
15	11
16	12
17	14
18	15
19	17
20	18
21	20
22	22
23	25
24	26
25	29
26	31
27	33
28	35
29	39
30	40
31	44
32	46
33	49
34	51
35	55
36	57
37	62
38	65
39	69
40	71
41	76
42	78
43	84
44	87
45	90
46	93
47	99
48	101
49	107
50	110
51	115
52	119
53	126
54	129
55	135
56	138
57	144
58	148
59	156
60	158

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	3
9	4
10	5
11	6
12	7
13	8
14	9
15	11
16	12
17	14
18	15
19	17
20	18
21	20
22	22
23	25
24	26
25	29
26	31
27	33
28	35
29	39
30	40
31	44
32	46
33	49
34	51
35	55
36	57
37	62
38	65
39	69
40	71
41	76
42	78
43	84
44	87
45	90
46	93
47	99
48	101
49	107
50	110
51	115
52	119
53	126
54	129
55	135
56	138
57	144
58	148
59	156
60	158

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	3
9	4
10	5
11	6
12	7
13	8
14	9
15	11
16	12
17	14
18	15
19	17
20	18
21	20
22	22
23	25
24	26
25	29
26	31
27	33
28	35
29	39
30	40
31	44
32	46
33	49
34	51
35	55
36	57
37	62
38	65
39	69
40	71
41	76
42	78
43	84
44	87
45	90
46	93
47	99
48	101
49	107
50	110
51	115
52	119
53	126
54	129
55	135
56	138
57	144
58	148
59	156
60	158