# A333772 (b-file synthesized from sequence entry)
1 2
2 32
3 864
4 36864
5 2304000
6 199065600
7 22759833600
8 3329438515200
9 606790169395200
10 134842259865600000
11 35895009576222720000
12 11277559372311429120000
13 4129466323494701629440000
14 1743270091026070964797440000
15 840505222458998500884480000000