# A012396 (b-file synthesized from sequence entry)
0 1
1 0
2 2
3 -3
4 12
5 -70
6 418
7 -2604
8 20048
9 -189288
10 1883592
11 -19386840
12 226594632
13 -3022978608
14 42088762896
15 -602721577080
16 9458674967808
17 -163559679584064
18 2928052794471360
19 -53694788632038144