# A105350 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 4
5 4
6 36
7 36
8 576
9 576
10 518400
11 518400
12 518400
13 518400
14 25401600
15 25401600
16 1625702400
17 1625702400
18 131681894400
19 131681894400
20 13168189440000
21 13168189440000
22 1593350922240000
23 1593350922240000
24 229442532802560000
25 229442532802560000