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A145158 as a simple table

na(n)
01
11
23
316
4121
51143
612570
7154551
82072547
929829412
10455731327
117332989616
12123548350018
132169987439342
1439595583375433
15748541216196285
1614628467191450947
17294984129900772611
186128372452917891216

[1,1,3,16,121,1143,12570,154551,2072547,29829412,
 455731327,7332989616,123548350018,2169987439342,
 39595583375433,748541216196285,14628467191450947,
 294984129900772611,6128372452917891216]