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A221691 as a simple table

n a(n)
1 28
2 11036
3 2627760
4 659020617
5 164441398718
6 41023076707062
7 10233875156794211
8 2553004334803146133
9 636887763097823284411
10 158881831138559422724173
11 39635611567879464460692735 

[28,11036,2627760,659020617,164441398718,
 41023076707062,10233875156794211,
 2553004334803146133,636887763097823284411,
 158881831138559422724173,
 39635611567879464460692735]

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Last modified September 10 04:30 EDT 2024. Contains 375773 sequences. (Running on oeis4.)