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A366155 as a simple table

na(n)
01
10
20
32
424
5240
62440
726880
8329280
94518080
1069148800
111168675200
1221564188800
13430048819200
149195964377600
15209593877292800
165068718054400000
17129599032442880000
183492894468128665600
1998968805893769011200
202940975338620999680000
2191452266705317726208000
222969664371124258103296000

[1,0,0,2,24,240,2440,26880,329280,4518080,
 69148800,1168675200,21564188800,430048819200,
 9195964377600,209593877292800,5068718054400000,
 129599032442880000,3492894468128665600,
 98968805893769011200,2940975338620999680000,
 91452266705317726208000,2969664371124258103296000]