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A052555 as a simple table

na(n)
01
12
210
372
4696
58400
6121680
72056320
839715200
9862928640
1020832940800
11553246848000
1216027872537600
13503031194265600
1417001946241280000
15615694938034176000
1623782705115000832000
17976080997055324160000

[1,2,10,72,696,8400,121680,2056320,39715200,
 862928640,20832940800,553246848000,16027872537600,
 503031194265600,17001946241280000,
 615694938034176000,23782705115000832000,
 976080997055324160000]