# A037663 (b-file synthesized from sequence entry)
1 3
2 22
3 154
4 1081
5 7568
6 52976
7 370835
8 2595846
9 18170922
10 127196457
11 890375200
12 6232626400
13 43628384803
14 305398693622
15 2137790855354
16 14964535987481
17 104751751912368
18 733262263386576
19 5132835843706035