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A262720 as a simple table

na(n)
01
12
28
322
468
5198
6586
71718
85047
914808
1043470
11127636
12374957
131102078
143241082
159537070
1628079357
1782718212
18243809138
19718994032
202121378272
216262089436
2218493519148
2354639914652
24161503493023
25477558890378
261412658185320

[1,2,8,22,68,198,586,1718,5047,14808,43470,127636,
 374957,1102078,3241082,9537070,28079357,82718212,
 243809138,718994032,2121378272,6262089436,
 18493519148,54639914652,161503493023,477558890378,
 1412658185320]