# A239793 (b-file synthesized from sequence entry)
0 1
1 24
2 320
3 10752
4 184320
5 360448
6 23855104
7 94371840
8 285212672
9 267764367360
10 3720515420160
11 987842478080
12 201004469452800
13 103903848824832
14 637716744110080
15 11997870882291712
16 368450744514248704
17 2251799813685248
18 164633587978155851776
19 9367487224930631680