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A073983 as a simple table

na(n)
11
22
33
418
5180
61296
78100
850544
9297432
101679616
119722592
1258576608
13358108128
142179768320
1513162730688
1678976384128
17472093588224
182821109907456
1916891882995456
20101356447675392
21608764662139392
223656158440062976
2321947538146863104
24131685972252346368

[1,2,3,18,180,1296,8100,50544,297432,1679616,
 9722592,58576608,358108128,2179768320,13162730688,
 78976384128,472093588224,2821109907456,
 16891882995456,101356447675392,608764662139392,
 3656158440062976,21947538146863104,
 131685972252346368]