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A189509 as a simple table

na(n)
21
36
465
5701
69324
7138016
82325740
943448940
10897020784
1120241273264

[1,6,65,701,9324,138016,2325740,43448940,
 897020784,20241273264]

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Last modified September 24 11:05 EDT 2024. Contains 376196 sequences. (Running on oeis4.)