# A012801 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 5
5 40
6 205
7 576
8 2473
9 46208
10 475385
11 1293184
12 -2814227
13 309637120
14 5900398725
15 5786437632
16 -532397600303
17 7315622592512
18 273302104270705
19 -347058934743040
20 -68724093821987755
21 483735262691819520