# A003633 (b-file synthesized from sequence entry)
1 1
2 -1
3 1
4 4
5 -38
6 -78
7 5246
8 -11680
9 -2066056
10 22308440
11 1898577048
12 -48769559680
13 -3518093351728
14 174500124820560
15 11809059761527536
16 -1021558531563834368
17 -66133927485154902144
18 9433326815405995274624
19 578173001867228425792384