# A236357 (b-file synthesized from sequence entry)
1 -1
2 2
3 -12
4 120
5 -1680
6 30360
7 -672000
8 17599680
9 -532224000
10 18248902560
11 -699544581120
12 29645099003520
13 -1376154991411200
14 69445751181206400
15 -3785191236642816000
16 221613328121888102400
17 -13870531255760776396800
18 924194452386724174656000