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A064633 as a simple table

na(n)
01
19
2216
39720
4699840
573483200
610581580800
71999918771200
8479980505088000
9142554210011136000
1051319515604008960000
1122016072194119843840000
1211096100385836401295360000
136491218725714294757785600000
144362098983680006077231923200000

[1,9,216,9720,699840,73483200,10581580800,
 1999918771200,479980505088000,142554210011136000,
 51319515604008960000,22016072194119843840000,
 11096100385836401295360000,
 6491218725714294757785600000,
 4362098983680006077231923200000]