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A012089 as a simple table

n a(n)
0 1
1 1
2 9
3 57
4 5169
5 -93807
6 31981689
7 -3857766903
8 1058896281825
9 -286891166986335
10 108826313005021545
11 -47766338018402914215
12 25721485923005221938705
13 -16179153687877979599066575

[1,1,9,57,5169,-93807,31981689,-3857766903,
 1058896281825,-286891166986335,108826313005021545,
 -47766338018402914215,25721485923005221938705,
 -16179153687877979599066575]

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Last modified May 19 08:11 EDT 2022. Contains 353826 sequences. (Running on oeis4.)