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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A137142 as a simple table

na(n)
18
269684
3946888
46669684
56988884
666996684
794598866
8666696684
9666699684
10698988884
11946566884
12948496684
136669966684
146855558664
156998898884
169458585866
1766666966684
1866666996684
1968446655864
2069684686664
2169888946684
2269898966864
2369988966884
2494649646886
2594656988884
26666699666684
27669998855886
28685555646658

[8,69684,946888,6669684,6988884,66996684,94598866,
 666696684,666699684,698988884,946566884,948496684,
 6669966684,6855558664,6998898884,9458585866,
 66666966684,66666996684,68446655864,69684686664,
 69888946684,69898966864,69988966884,94649646886,
 94656988884,666699666684,669998855886,
 685555646658]