# A221893 (b-file synthesized from sequence entry)
1 0
2 0
3 90
4 4137
5 154458
6 5488703
7 201212852
8 7816225089
9 303242246539
10 11670544747194
11 449384417173902
12 17313378667903125
13 666942058278936822
14 25692119785626315240
15 989734547009551775051