# A006075 (b-file synthesized from sequence entry)
1 1
2 4
3 4
4 4
5 5
6 8
7 10
8 12
9 14
10 16
11 21
12 24
13 28
14 32
15 36
16 40
17 46
18 52
19 57
20 62
21 68