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A207913 as a simple table

na(n)
12
216
398
41309
521145
6612439
728188778
82088382007
9241159388724
1045610488555258
1113703703085638203
126587710602249205713
135068113112003743826155
146252316203337352775508286

[2,16,98,1309,21145,612439,28188778,2088382007,
 241159388724,45610488555258,13703703085638203,
 6587710602249205713,5068113112003743826155,
 6252316203337352775508286]