login

A230053 as a simple table

na(n)
01
11
22
36
448
51440
6414720
74180377600
813869489586176000
9521817332305350780518400000
1072373400562952038729626622187536384000000000
11415422642927888257689749131592471020852730170822782196121600000000000000

[1,1,2,6,48,1440,414720,4180377600,
 13869489586176000,521817332305350780518400000,
 72373400562952038729626622187536384000000000,
 41542264292788825768974913159247102085273017082278\
 2196121600000000000000]