# A108946 (b-file synthesized from sequence entry)
0 1
1 -3
2 13
3 -48
4 181
5 -675
6 2521
7 -9408
8 35113
9 -131043
10 489061
11 -1825200
12 6811741
13 -25421763
14 94875313
15 -354079488
16 1321442641
17 -4931691075
18 18405321661
19 -68689595568
20 256353060613
21 -956722646883
22 3570537526921
23 -13325427460800
24 49731172316281