# A218151 (b-file synthesized from sequence entry)
0 2
1 6
2 90
3 6750
4 2531250
5 4746093750
6 44494628906250
7 2085685729980468750
8 488832592964172363281250
9 572850694879889488220214843750
10 3356547040311852470040321350097656250
11 98336339071636302833212539553642272949218750