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A087047 as a simple table

na(n)
01
11
24
340
4800
528000
61568000
7131712000
815805440000
92607897600000
10573737472000000
11164088916992000000
1259728365785088000000
1327176406432215040000000
1415218787602040422400000000
1510348775569387487232000000000
168444600864620189581312000000000
178182818237816963704291328000000000

[1,1,4,40,800,28000,1568000,131712000,15805440000,
 2607897600000,573737472000000,164088916992000000,
 59728365785088000000,27176406432215040000000,
 15218787602040422400000000,
 10348775569387487232000000000,
 8444600864620189581312000000000,
 8182818237816963704291328000000000]