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A197663 as a simple table

n a(n)
1 1
2 1
3 13
4 49
5 567
6 15412
7 329372
8 21751339
9 2108724044
10 293878982370
11 87209877288093
12 39253957174939181 

[1,1,13,49,567,15412,329372,21751339,2108724044,
 293878982370,87209877288093,39253957174939181]

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Last modified May 20 08:05 EDT 2024. Contains 372703 sequences. (Running on oeis4.)