# A138857 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 4
5 6
6 9
7 12
8 18
9 25
10 34
11 49
12 70
13 99
14 140
15 198
16 280
17 396
18 560
19 792
20 1120
21 1584
22 2241
23 3169
24 4482
25 6339
26 8965
27 12678
28 17930
29 25357
30 35860