# A371140 (b-file synthesized from sequence entry)
0 1
1 0
2 2
3 3
4 56
5 270
6 5064
7 47040
8 984416
9 14116032
10 336538080
11 6589416240
12 179336461248
13 4446985514400
14 137520942168960
15 4112410749501600
16 143445512622458880
17 5004065722611594240
18 195260931334478223360
19 7762385328551718796800
20 336051947630616458065920