# A081046 (b-file synthesized from sequence entry)
0 1
1 -2
2 5
3 -17
4 74
5 -394
6 2484
7 -18108
8 149904
9 -1389456
10 14257440
11 -160460640
12 1965444480
13 -26029779840
14 370643938560
15 -5646837369600
16 91657072281600
17 -1579093018675200
18 28779361764249600
19 -553210247226470400