login

A110371 as a simple table

na(n)
12
24
320
4168
52016
631680
7617760
814414400
9392071680
1012189864960
11426645273600
1216606346803200
13711700577280000
1433307587016704000
151690360041097728000
1692472637542405120000
175425061402487767040000
18339780161524233830400000
1922629358757513973104640000

[2,4,20,168,2016,31680,617760,14414400,392071680,
 12189864960,426645273600,16606346803200,
 711700577280000,33307587016704000,
 1690360041097728000,92472637542405120000,
 5425061402487767040000,339780161524233830400000,
 22629358757513973104640000]