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A366685 as a simple table

na(n)
14
232
3432
43840
564400
6373248
77613424
856217600
9765889344
106913984000
11114117380608
12599824465920
1313796450740800
1498909341090560
151356399209088000
1611341872916070400
17202178811399717504
181171410130065973248
1924463636179365818512
20176391086415667200000

[4,32,432,3840,64400,373248,7613424,56217600,
 765889344,6913984000,114117380608,599824465920,
 13796450740800,98909341090560,1356399209088000,
 11341872916070400,202178811399717504,
 1171410130065973248,24463636179365818512,
 176391086415667200000]