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A171326 as a simple table

n a(n)
1 21
2 440
3 9178
4 188356
5 3959768
6 83153605
7 1738979798
8 36412811648
9 761311432412

[21,440,9178,188356,3959768,83153605,1738979798,
 36412811648,761311432412]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)