# A082480 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 12
4 48
5 288
6 2592
7 36288
8 798336
9 27941760
10 1564738560
11 140826470400
12 20419838208000
13 4778242140672000
14 1806175529174016000
15 1103573248325323776000
16 1090330369345419890688000