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A054332 as a simple table

na(n)
05
1440
216016
3366080
46223360
585995520
61018716160
710711072768
8102385254400
9905301196800
107501067059200
1158822597017600
12439993025691648
133158924287016960
1421879051958353920
15146801380881858560

[5,440,16016,366080,6223360,85995520,1018716160,
 10711072768,102385254400,905301196800,
 7501067059200,58822597017600,439993025691648,
 3158924287016960,21879051958353920,
 146801380881858560]