# A004494 (b-file synthesized from sequence entry)
0 5
1 3
2 4
3 8
4 6
5 7
6 2
7 0
8 1
9 14
10 12
11 13
12 17
13 15
14 16
15 11
16 9
17 10
18 23
19 21
20 22
21 26
22 24
23 25
24 20
25 18
26 19
27 32
28 30
29 31
30 35
31 33
32 34
33 29
34 27
35 28
36 41
37 39
38 40
39 44
40 42
41 43
42 38
43 36
44 37
45 50
46 48
47 49
48 53
49 51
50 52
51 47
52 45
53 46
54 59
55 57
56 58
57 62
58 60
59 61
60 56
61 54
62 55
63 68
64 66
65 67
66 71
67 69