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A267754 as a simple table

n a(n)
1 1
2 15
3 780
4 68151
5 7280046
6 873319806
7 113187903900
8 15506951007015
9 2214490608127986
10 326564039118851370 

[1,15,780,68151,7280046,873319806,113187903900,
 15506951007015,2214490608127986,
 326564039118851370]

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Last modified May 20 23:05 EDT 2022. Contains 353886 sequences. (Running on oeis4.)