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A177422 as a simple table

na(n)
0221
11938
28673
373729
4589855
57561526
634593784
7218391421
82116566392
98522858480
1034225586144
11137170649024
12549219204992
132197950037760
148793946586624
1535180079217664
16140728902612992
17562932781936640

[221,1938,8673,73729,589855,7561526,34593784,
 218391421,2116566392,8522858480,34225586144,
 137170649024,549219204992,2197950037760,
 8793946586624,35180079217664,140728902612992,
 562932781936640]