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A250685 as a simple table

na(n)
1543
22920
315246
476320
5362241
61647460
77249825
831113316
9131014715
10543845812
112233368847
129098214240
1336844025643
14148553970588
15597082293823
162394504059784
179587995012203
1838352450171812
19153311305422383

[543,2920,15246,76320,362241,1647460,7249825,
 31113316,131014715,543845812,2233368847,
 9098214240,36844025643,148553970588,597082293823,
 2394504059784,9587995012203,38352450171812,
 153311305422383]