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A300398 as a simple table

na(n)
13
226
3253
42515
525007
6250110
72500209
825000135
9250002220
102500000243
1125000027724
12250000009260

[3,26,253,2515,25007,250110,2500209,25000135,
 250002220,2500000243,25000027724,250000009260]