# A018585 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 4
5 6
6 7
7 8
8 12
9 14
10 16
11 21
12 24
13 28
14 32
15 42
16 48
17 56
18 84
19 96
20 112
21 168
22 224
23 336
24 672