# A076257 (b-file synthesized from sequence entry)
0 1
1 -2
2 0
3 6
4 0
5 -2
6 -24
7 0
8 24
9 0
10 120
11 0
12 -240
13 0
14 24
15 -720
16 0
17 2400
18 0
19 -720
20 0
21 5040
22 0
23 -25200
24 0
25 15120
26 0
27 -720
28 -40320
29 0
30 282240
31 0
32 -282240
33 0
34 40320
35 0
36 362880
37 0
38 -3386880
39 0
40 5080320
41 0
42 -1451520
43 0
44 40320
45 -3628800
46 0
47 43545600
48 0
49 -91445760
50 0
51 43545600
52 0