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A052801 as a simple table

na(n)
01
12
28
346
4342
53108
633324
7411360
85741856
989379120
101534623936
1128804923024
12586686138384
1312885385945248
14303537419684064
157633673997722496
16204125888803996800
175782960189212871680

[1,2,8,46,342,3108,33324,411360,5741856,89379120,
 1534623936,28804923024,586686138384,
 12885385945248,303537419684064,7633673997722496,
 204125888803996800,5782960189212871680]