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A237798 as a simple table

na(n)
1750
25022
38037
418250
560249
6105669
71760490
81965270
94626489
1062546070
11202631245
12441416073
13286952692809

[750,5022,8037,18250,60249,105669,1760490,1965270,
 4626489,62546070,202631245,441416073,286952692809]