# A118791 (b-file synthesized from sequence entry)
0 1
1 -1
2 3
3 2
4 -9
5 19
6 -6
7 36
8 -103
9 207
10 24
11 -180
12 650
13 -1605
14 3211
15 -120
16 1080
17 -4710
18 13860
19 -32191
20 64383
21 720
22 -7560
23 38640
24 -132300
25 351722
26 -790629
27 1581259
28 -5040
29 60480
30 -354480
31 1386000
32 -4163166
33 10433556
34 -22974463
35 45948927
36 40320
37 -544320
38 3598560
39 -15830640
40 53117064