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A009723 as a simple table

n a(n)
0 1
1 3
2 57
3 1995
4 128881
5 12775059
6 1796958633
7 342118793307
8 84276974508769
9 26141579246291235
10 9956883572644073241
11 4570240365824839488747
12 2487549038143714062879313
13 1584207614996350912703688627 

[1,3,57,1995,128881,12775059,1796958633,
 342118793307,84276974508769,26141579246291235,
 9956883572644073241,4570240365824839488747,
 2487549038143714062879313,
 1584207614996350912703688627]

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Last modified April 25 13:12 EDT 2024. Contains 371969 sequences. (Running on oeis4.)