# A102087 (b-file synthesized from sequence entry)
0 0
1 2
2 4
3 20
4 156
5 1664
6 22684
7 378572
8 7504640
9 172785512
10 4540756252
11 134330010172
12 4423176368332
13 160596613105384
14 6378859853838480
15 275308217428662672
16 12836003750434047344
17 643227594173121801096