# A366155 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 2
4 24
5 240
6 2440
7 26880
8 329280
9 4518080
10 69148800
11 1168675200
12 21564188800
13 430048819200
14 9195964377600
15 209593877292800
16 5068718054400000
17 129599032442880000
18 3492894468128665600
19 98968805893769011200
20 2940975338620999680000
21 91452266705317726208000
22 2969664371124258103296000