# A338364 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 4
5 16
6 64
7 512
8 3072
9 30720
10 368640
11 2949120
12 35389440
13 566231040
14 6794772480
15 149484994560
16 3587639869440
17 100453916344320
18 1607262661509120
19 32145253230182400
20 771486077524377600
21 18515665860585062400
22 444375980654041497600
23 17775039226161659904000