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A212233 as a simple table

na(n)
16
250
3435
43834
534001
6302615
72699598
824121674
9215786649
101932081885
1117311097568
12155188936431
131391839527240
1412487516404434
15112071578930795
161006067340461802
179033468257955009
1881126883587357557
19728697257578499280

[6,50,435,3834,34001,302615,2699598,24121674,
 215786649,1932081885,17311097568,155188936431,
 1391839527240,12487516404434,112071578930795,
 1006067340461802,9033468257955009,
 81126883587357557,728697257578499280]