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A209290 as a simple table

na(n)
00
10
22
324
4324
55120
693750
71959552
846118408
91207959552
1034867844010
111100000000000
1237661140520652
131390911669927936
1455123269399790046
152333521433367183360
16105094533691406250000
175017514388048998039552
18253135520137219049838162
1913456471561751415850795008

[0,0,2,24,324,5120,93750,1959552,46118408,
 1207959552,34867844010,1100000000000,
 37661140520652,1390911669927936,55123269399790046,
 2333521433367183360,105094533691406250000,
 5017514388048998039552,253135520137219049838162,
 13456471561751415850795008]