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A109765 as a simple table

na(n)
00
11
25
323
497
5399
61617
76511
826129
9104687
10419089
111677039
126709521
1326840815
14107368721
15429485807
161717965073
176871903983
1827487703313
19109950988015
20439804301585
211759217905391
227036873019665
2328147494874863

[0,1,5,23,97,399,1617,6511,26129,104687,419089,
 1677039,6709521,26840815,107368721,429485807,
 1717965073,6871903983,27487703313,109950988015,
 439804301585,1759217905391,7036873019665,
 28147494874863]