# A350113 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 45360
9 498960
10 6486480
11 110270160
12 2095133040
13 41902660800
14 963761198400
15 26985313555200
16 782574093100800
17 24259796886124800
18 897612484786617600
19 36802111876251321600
20 1582490810678806828800
21 74377068101903920953600
22 3941984609400907810540800