# A195689 (b-file synthesized from sequence entry)
1 5
2 17
3 53
4 3545
5 8369
6 823633
7 499025
8 669937733
9 722651597
10 35034942905
11 173113684537
12 1860490554949
13 21906189996125
14 2320160748906089
15 1347255903779016125
16 49174444344033218405
17 436006592777392918253129
18 31471103940926430492910889