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A154706 as a simple table

na(n)
21
313
413
5118
6228
7118
8846
93234
103234
11846
125279
1338932
1463258
1538932
165279
1730339
18405927
191082454
201082454
21405927
2230339
23165820
243796728
2516512132
2624852880
2716512132
283796728
29165820
30878188
3132837380
32226681452
33509876260
34509876260
35226681452
3632837380
37878188

[1,13,13,118,228,118,846,3234,3234,846,5279,38932,
 63258,38932,5279,30339,405927,1082454,1082454,
 405927,30339,165820,3796728,16512132,24852880,
 16512132,3796728,165820,878188,32837380,226681452,
 509876260,509876260,226681452,32837380,878188]