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A299655 as a simple table

na(n)
11
28
3227
422087
57411398
68607101770
734546300829517
8478911551660693464
922930235691929943217996

[1,8,227,22087,7411398,8607101770,34546300829517,
 478911551660693464,22930235691929943217996]