login

A004386 as a simple table

na(n)
51
648
71540
841664
91028790
1024040016
11541931236
1211919192480
13257575523205
145494563394320
15116068178638776
162433440563030400
1750718300243156000
181052134368066259632
1921743950029947469800

[1,48,1540,41664,1028790,24040016,541931236,
 11919192480,257575523205,5494563394320,
 116068178638776,2433440563030400,
 50718300243156000,1052134368066259632,
 21743950029947469800]