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A181546 as a simple table

na(n)
01
11
22
317
483
5338
61923
711553
863028
9359203
102172469
1113026034
1278106885
13478415635
142957675956
1518321372721
16114301292581
17718253640196
184531427831111
1928699590926291
20182566373639352
211165539703613397

[1,1,2,17,83,338,1923,11553,63028,359203,2172469,
 13026034,78106885,478415635,2957675956,
 18321372721,114301292581,718253640196,
 4531427831111,28699590926291,182566373639352,
 1165539703613397]