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A224474 as a simple table

na(n)
11
251
3751
48751
518751
6218751
74218751
874218751
9574218751
103574218751
1163574218751
12163574218751
13163574218751
1480163574218751
15480163574218751
167480163574218751
1787480163574218751
18487480163574218751
195487480163574218751
2015487480163574218751

[1,51,751,8751,18751,218751,4218751,74218751,
 574218751,3574218751,63574218751,163574218751,
 163574218751,80163574218751,480163574218751,
 7480163574218751,87480163574218751,
 487480163574218751,5487480163574218751,
 15487480163574218751]