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A177405 Form triangle of weighted Farey fractions; read numerators by rows.

Table of values

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

List of values

[0, 1, 0, 1, 2, 1, 0, 1, 2, 1, 4, 5, 2, 5, 4, 1, 0, 1, 2, 1, 4, 5, 2, 5, 4, 1, 2, 3, 4, 13, 14, 5, 4, 3, 2, 9, 12, 5, 14, 13, 4, 9, 6, 1, 0, 1, 2, 1, 4, 5, 2, 5, 4, 1, 2, 3, 4, 13, 14, 5, 4, 3, 2, 9, 12, 5, 14, 13, 4, 9, 6, 1, 4, 5, 2, 7, 8, 3, 10, 11]

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