# A168402 (b-file synthesized from sequence entry)
0 1
1 2
2 16
3 496
4 63488
5 32899584
6 68048945152
7 560546063546368
8 18415227534711980032
9 2416302301874471529480192
10 1267360472364492854214927581184
11 2658246833130441862918267501949222912