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A000917 as a simple table

na(n)
03
120
2105
3504
42310
510296
645045
7194480
8831402
93527160
1014872858
1162403600
12260757900
131085822640
144508102925
1518668849760
1677138650050
17318107374200
181309542023790
195382578744400
2022093039119060
2190567738003600
22370847442355650
231516927277253024

[3,20,105,504,2310,10296,45045,194480,831402,
 3527160,14872858,62403600,260757900,1085822640,
 4508102925,18668849760,77138650050,318107374200,
 1309542023790,5382578744400,22093039119060,
 90567738003600,370847442355650,1516927277253024]