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A289068 as a simple table

n a(n)
0 1
1 -2
2 -2
3 2
4 14
5 10
6 -170
7 -670
8 2270
9 30490
10 26950
11 -1435150
12 -8513650
13 59564650
14 1050090550
15 486517250
16 -113618013250
17 -831340535750
18 10136160835750
19 208459859695250
20 -121723298991250
21 -41568491959973750
22 -338549875950886250
23 6637158567781561250

[1,-2,-2,2,14,10,-170,-670,2270,30490,26950,
 -1435150,-8513650,59564650,1050090550,486517250,
 -113618013250,-831340535750,10136160835750,
 208459859695250,-121723298991250,
 -41568491959973750,-338549875950886250,
 6637158567781561250]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)