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A193519 as a simple table

na(n)
00
10
22
310
440
5144
6490
71610
85168
916320
1050930
11157546
12484120
131480080
144507162
1513683050
1641439200
17125259264
18378051170
191139641930
203432176008
2110328516880
2231062778570
2393374780426
24280574458640
25842810055360
262531053642322
277599494558890
2822813774416760
2968478238362384

[0,0,2,10,40,144,490,1610,5168,16320,50930,157546,
 484120,1480080,4507162,13683050,41439200,
 125259264,378051170,1139641930,3432176008,
 10328516880,31062778570,93374780426,280574458640,
 842810055360,2531053642322,7599494558890,
 22813774416760,68478238362384]