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A331768 as a simple table

na(n)
0480
14800
216800
340320
479200
5137280
6218400
7326400
8465120
9638400
10850080
111104000
121404000
131753920
142157600
152618880
163141600
173729600
184386720
195116800
205923680
216811200
227783200
238843520
249996000
2511244480
2612592800
2714044800
2815604320
2917275200
3019061280
3120966400
3222994400

[480,4800,16800,40320,79200,137280,218400,326400,
 465120,638400,850080,1104000,1404000,1753920,
 2157600,2618880,3141600,3729600,4386720,5116800,
 5923680,6811200,7783200,8843520,9996000,11244480,
 12592800,14044800,15604320,17275200,19061280,
 20966400,22994400]