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A126505 as a simple table

na(n)
01
110
270
3510
43720
527142
6198034
71444904
810542368
976919662
10561224422
114094828862
1229876859864
13217988781808
141590498774316
1511604663002012
1684670422615182
17617775842744470
184507441679052256
1932887382581680414

[1,10,70,510,3720,27142,198034,1444904,10542368,
 76919662,561224422,4094828862,29876859864,
 217988781808,1590498774316,11604663002012,
 84670422615182,617775842744470,4507441679052256,
 32887382581680414]