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A229650 as a simple table

na(n)
01
14
228
3232
42092
519864
6195352
71970896
820275660
9211823836
102240798048
1123951367224
12258257552968
132805581350056
1430676425237024
15337324008602512
163727882769574860
1741381900166952348
18461201577710442388
195158610797198820800

[1,4,28,232,2092,19864,195352,1970896,20275660,
 211823836,2240798048,23951367224,258257552968,
 2805581350056,30676425237024,337324008602512,
 3727882769574860,41381900166952348,
 461201577710442388,5158610797198820800]