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A261253 as a simple table

n a(n)
0 1
1 -4
2 2
3 -2
4 -31
5 -288
6 -2939
7 -33944
8 -438614
9 -6266312
10 -98050303
11 -1667563622
12 -30631857759
13 -604518210964
14 -12758658946466
15 -286833669370926
16 -6844757550430019
17 -172833310268551740
18 -4604828067485736507
19 -129123684195177403168
20 -3801830662346341617586

[1,-4,2,-2,-31,-288,-2939,-33944,-438614,-6266312,
 -98050303,-1667563622,-30631857759,-604518210964,
 -12758658946466,-286833669370926,
 -6844757550430019,-172833310268551740,
 -4604828067485736507,-129123684195177403168,
 -3801830662346341617586]

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Last modified April 16 12:52 EDT 2024. Contains 371711 sequences. (Running on oeis4.)