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A066222 as a simple table

na(n)
01
19
275
3763
49495
5140151
62390479
746206735
8997313823
923758664095
10618884638911
1117492190577599
12532985208200575
1317411277367391103
14606917269909048575
1522481059424730751231
16881687990282453393919

[1,9,75,763,9495,140151,2390479,46206735,
 997313823,23758664095,618884638911,17492190577599,
 532985208200575,17411277367391103,
 606917269909048575,22481059424730751231,
 881687990282453393919]