# A344052 (b-file synthesized from sequence entry)
0 1
1 -1
2 -1
3 8
4 19
5 -276
6 -1002
7 21216
8 103395
9 -2881180
10 -17620142
11 609297072
12 4483215086
13 -185182296040
14 -1592692090420
15 76512069014400
16 753146574607395
17 -41256108712556460
18 -457383584443526790
19 28138583115102810000
20 346933879489006727610
21 -23683708768534714984920