# A170810 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 12
5 40
6 116
7 200
8 444
9 760
10 2160
11 4872
12 11932
13 29252
14 71708
15 191356
16 536908
17 1607592
18 5184252
19 17331516
20 61597568
21 228854684
22 891958912