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A183645 as a simple table

na(n)
1325
21001
33445
412785
550125
6205001
7867205
83771425
916784125
1076156601
11351254965
121642635665
137771818925
1437132805801
15178875434725
16867570709505
174231667890525
1820736710344601
19102006361694485
20503350999256945

[325,1001,3445,12785,50125,205001,867205,3771425,
 16784125,76156601,351254965,1642635665,7771818925,
 37132805801,178875434725,867570709505,
 4231667890525,20736710344601,102006361694485,
 503350999256945]