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A228063 as a simple table

na(n)
14
221
3143
41063
58371
668785
7583436
85069633
944876757
10403025174
113660702622
1233550877248
13309726969451
142876065468123
1526835315229835
16251389798269317
172362887262236150
1822272676889496853
19210455460654786509
201992806263723883464

[4,21,143,1063,8371,68785,583436,5069633,44876757,
 403025174,3660702622,33550877248,309726969451,
 2876065468123,26835315229835,251389798269317,
 2362887262236150,22272676889496853,
 210455460654786509,1992806263723883464]