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A218343 as a simple table

na(n)
16
20
3858
42112
589898
6276672
78916198
889522598
9898373898
108998558998
1189984248998
12899931139998
138999867689998
1489999400499998
15899998808899998
168999950220599998
1789999961316999998
18899999985589999998
198999999741479999998
2089999993611639999998

[6,0,858,2112,89898,276672,8916198,89522598,
 898373898,8998558998,89984248998,899931139998,
 8999867689998,89999400499998,899998808899998,
 8999950220599998,89999961316999998,
 899999985589999998,8999999741479999998,
 89999993611639999998]