login

A052727 as a simple table

na(n)
00
11
24
324
4288
54800
6103680
72741760
885800960
93100446720
10127037030400
115819550105600
12294727768473600
1316350861400473600
14986127353590579200
1564238655955009536000
164495021381191204864000
17336249161369543245824000

[0,1,4,24,288,4800,103680,2741760,85800960,
 3100446720,127037030400,5819550105600,
 294727768473600,16350861400473600,
 986127353590579200,64238655955009536000,
 4495021381191204864000,336249161369543245824000]