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A220648 as a simple table

na(n)
11
223
3333
44352
559846
6816159
711131560
8151872860
92071881506
1028265332768
11385605987981
125260573865475
1371766627731228
14979065962496791
1513356767420074715
16182217790214391903
172485880154961341585

[1,23,333,4352,59846,816159,11131560,151872860,
 2071881506,28265332768,385605987981,5260573865475,
 71766627731228,979065962496791,13356767420074715,
 182217790214391903,2485880154961341585]