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A209606 as a simple table

na(n)
12
245
3955
411879
5151736
61947347
724912066
8322047969
94162324219
1053725706448
11693454797025
128950269164167
13115522311347383
141491104128677150
1519246371866665817
16248421180186787884
173206476873520078239

[2,45,955,11879,151736,1947347,24912066,322047969,
 4162324219,53725706448,693454797025,8950269164167,
 115522311347383,1491104128677150,
 19246371866665817,248421180186787884,
 3206476873520078239]