# A334190 (b-file synthesized from sequence entry)
0 1
1 0
2 -2
3 -4
4 4
5 64
6 248
7 48
8 -6512
9 -51200
10 -171296
11 830400
12 17870400
13 144684032
14 441316224
15 -5976726784
16 -119879356160
17 -1123892297728
18 -3962230563328
19 70410917051392
20 1686366492509184
21 19578100126072832
22 101728414306826240
23 -1258662784047370240
24 -42727186269262737408