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A207215 as a simple table

na(n)
13
281
312534
412584703
586510224720
64019515127529418
71256433426475190769775
82643803004141585682944365943

[3,81,12534,12584703,86510224720,4019515127529418,
 1256433426475190769775,
 2643803004141585682944365943]