login

A001812 as a simple table

na(n)
51
636
7882
818816
9381024
107620480
11153679680
123161410560
1366784798080
141454424491520
1532724551059200
16761589551923200
1718341615042150400
18457129482588979200
1911787410229615820800
20314330939456421888000
218663746518767628288000
22246661959710796005376000

[1,36,882,18816,381024,7620480,153679680,
 3161410560,66784798080,1454424491520,
 32724551059200,761589551923200,18341615042150400,
 457129482588979200,11787410229615820800,
 314330939456421888000,8663746518767628288000,
 246661959710796005376000]