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A174780 as a simple table

n a(n)
1 0
2 531
3 3697884
4 25752063645
5 179337367525896
6 1248905401698276099
7 8697377038089427227540
8 60568532444349369514312461
9 421799251245071971208244750864
10 2937409925102148763144846930704435
11 20456122296612112741468742817180934476

[0,531,3697884,25752063645,179337367525896,
 1248905401698276099,8697377038089427227540,
 60568532444349369514312461,
 421799251245071971208244750864,
 2937409925102148763144846930704435,
 20456122296612112741468742817180934476]

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Last modified August 4 12:33 EDT 2021. Contains 346447 sequences. (Running on oeis4.)