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A052934 as a simple table

na(n)
01
15
230
3180
41080
56480
638880
7233280
81399680
98398080
1050388480
11302330880
121813985280
1310883911680
1465303470080
15391820820480
162350924922880
1714105549537280
1884633297223680
19507799783342080

[1,5,30,180,1080,6480,38880,233280,1399680,
 8398080,50388480,302330880,1813985280,10883911680,
 65303470080,391820820480,2350924922880,
 14105549537280,84633297223680,507799783342080]