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A152887 as a simple table

na(n)
10
21
32
418
572
6720
74320
850400
9403200
105443200
1154432000
12838252800
1310059033600
14174356582400
152440992153600
1647076277248000
17753220435968000
1816005934264320000
19288106816757760000
206690480522485760000
21133809610449715200000
223372002183332823040000

[0,1,2,18,72,720,4320,50400,403200,5443200,
 54432000,838252800,10059033600,174356582400,
 2440992153600,47076277248000,753220435968000,
 16005934264320000,288106816757760000,
 6690480522485760000,133809610449715200000,
 3372002183332823040000]