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A027645 as a simple table

n a(n)
0 1
1 1
2 -11
3 -1
4 1243
5 -49
6 -75613
7 599
8 234671
9 -803
10 -4955857
11 53443
12 921931911863
13 -449291
14 -23461249769
15 1237447
16 917870505450709
17 -82659252107
18 -959539811053709101
19 145633840717
20 20593004175300735901
21 -12278015226517

[1,1,-11,-1,1243,-49,-75613,599,234671,-803,
 -4955857,53443,921931911863,-449291,-23461249769,
 1237447,917870505450709,-82659252107,
 -959539811053709101,145633840717,
 20593004175300735901,-12278015226517]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)