# A128057 (b-file synthesized from sequence entry)
0 1
1 1
2 -2
3 -2
4 6
5 6
6 -20
7 -20
8 70
9 70
10 -252
11 -252
12 924
13 924
14 -3432
15 -3432
16 12870
17 12870
18 -48620
19 -48620
20 184756
21 184756
22 -705432
23 -705432
24 2704156
25 2704156
26 -10400600
27 -10400600
28 40116600
29 40116600
30 -155117520
31 -155117520