# A111154 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 22
4 125
5 948
6 8627
7 86618
8 970649
9 13105048
10 206672615
11 3084750894
12 39005776445
13 972651041372
14 45030832321499
15 489627529809250
16 -65060172242461567
17 100399556385989760
18 378285729309697789679
19 921583343151423434486
20 -2826260367937145199562267