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A231999 as a simple table

na(n)
19
232
3121
4406
51225
63916
712769
841180
9131769
10423168
111361889
124378942
1314070001
1445221064
15145371249
16467284392
171501950025
184827700176
1915517934041
2049879756014
21160328968921
22515348072772
231656495128401
245324506601820

[9,32,121,406,1225,3916,12769,41180,131769,423168,
 1361889,4378942,14070001,45221064,145371249,
 467284392,1501950025,4827700176,15517934041,
 49879756014,160328968921,515348072772,
 1656495128401,5324506601820]