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A098297 as a simple table

na(n)
00
11
212
3121
41200
511881
6117612
71164241
811524800
9114083761
101129312812
1111179044361
12110661130800
131095432263641
1410843661505612
15107341182792481
161062568166419200
1710518340481399521
18104120836647576012

[0,1,12,121,1200,11881,117612,1164241,11524800,
 114083761,1129312812,11179044361,110661130800,
 1095432263641,10843661505612,107341182792481,
 1062568166419200,10518340481399521,
 104120836647576012]