# A053495 (b-file synthesized from sequence entry)
0 1
1 1
2 -1
3 -1
4 2
5 -2
6 1
7 -4
8 6
9 -6
10 -1
11 6
12 -18
13 24
14 -24
15 1
16 -9
17 36
18 -96
19 120
20 -120
21 -1
22 12
23 -72
24 240
25 -600
26 720
27 -720
28 1
29 -16
30 120
31 -600
32 1800
33 -4320
34 5040
35 -5040
36 -1
37 20
38 -200
39 1200
40 -5400
41 15120
42 -35280
43 40320
44 -40320
45 1
46 -25
47 300
48 -2400
49 12600