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A015007 as a simple table

n a(n)
0 1
1 1
2 9
3 657
4 384345
5 1799118945
6 67375205371305
7 20185139902805378865
8 48378633136349277767794425
9 927610024989668734297857360967425
10 142287668466497494704440569679875994730825
11 174605966461872393482359052970987514818406771638225 

[1,1,9,657,384345,1799118945,67375205371305,
 20185139902805378865,48378633136349277767794425,
 927610024989668734297857360967425,
 142287668466497494704440569679875994730825,
 17460596646187239348235905297098751481840677163822\
 5]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)