# A370994 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 6
4 12
5 40
6 3060
7 23688
8 191520
9 9698400
10 158548320
11 2304973440
12 100716073920
13 2627516361600
14 58513944513024
15 2512156283683200
16 89046056086041600
17 2739316757454950400
18 124170651534918297600
19 5440968468533003212800
20 215067442349096186572800