# A366459 (b-file synthesized from sequence entry)
0 0
1 0
2 2
3 6
4 24
5 140
6 990
7 8442
8 84056
9 955656
10 12227130
11 173812430
12 2717859012
13 46362339036
14 856770362630
15 17050946225250
16 363576478312560
17 8269357341437072
18 199837364514425586
19 5113346326011170838
20 138106722548779770620
21 3926456810081828991780