# A092396 (b-file synthesized from sequence entry)
0 1
1 -1
2 -4
3 9
4 64
5 -225
6 -2304
7 11025
8 147456
9 -893025
10 -14745600
11 108056025
12 2123366400
13 -18261468225
14 -416179814400
15 4108830350625
16 106542032486400
17 -1187451971330625
18 -34519618525593600
19 428670161650355625
20 13807847410237440000
21 -189043541287806830625
22 -6682998146554920960000