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A218668 as a simple table

na(n)
01
10
21
33
422
5161
61546
718857
8270320
94471693
1085455574
111865128265
1245735737037
131247518965519
1437654095184226
151250673144714138
1645415758777730668
171792734161930717221
1876595370803745016626
193529261203030717032927
20174742139545017029583279

[1,0,1,3,22,161,1546,18857,270320,4471693,
 85455574,1865128265,45735737037,1247518965519,
 37654095184226,1250673144714138,45415758777730668,
 1792734161930717221,76595370803745016626,
 3529261203030717032927,174742139545017029583279]