# A354610 (b-file synthesized from sequence entry)
0 1
1 0
2 -2
3 -3
4 16
5 90
6 -84
7 -2940
8 -8672
9 95256
10 956160
11 -811800
12 -75724296
13 -419150160
14 4406562720
15 78306555600
16 89704074240
17 -9655388184960
18 -97621097227200
19 657339885653760
20 23680733504400000
21 119677890314505600
22 -3528587069869276800
23 -64401874868363598720