# A346577 (b-file synthesized from sequence entry)
1 1
2 2
3 9
4 40
5 200
6 1026
7 5537
8 30624
9 173583
10 1001400
11 5864749
12 34768296
13 208267319
14 1258574114
15 7663720500
16 46976003712
17 289628805622
18 1794932293950
19 11175157356521
20 69864074596000
21 438403736543598
22 2760351027094298
23 17433869214973753
24 110420300844952992