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A087448 as a simple table

na(n)
01
12
27
326
493
5322
61091
73642
812025
939362
10127935
11413338
121328597
134251522
1413551739
1543046714
16136314609
17430467202
181355971703
194261625370
2013366006861
2141841412802
22130754415027
23407953774906
241270932914153

[1,2,7,26,93,322,1091,3642,12025,39362,127935,
 413338,1328597,4251522,13551739,43046714,
 136314609,430467202,1355971703,4261625370,
 13366006861,41841412802,130754415027,407953774906,
 1270932914153]