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A091004 as a simple table

n a(n)
0 0
1 1
2 -2
3 8
4 -20
5 68
6 -188
7 596
8 -1724
9 5300
10 -15644
11 47444
12 -141308
13 425972
14 -1273820
15 3829652
16 -11472572
17 34450484
18 -103285916
19 309988820
20 -929704316
21 2789637236
22 -8367863132
23 25105686548
24 -75312865340
25 225946984628
26 -677824176668
27 2033506084436

[0,1,-2,8,-20,68,-188,596,-1724,5300,-15644,47444,
 -141308,425972,-1273820,3829652,-11472572,
 34450484,-103285916,309988820,-929704316,
 2789637236,-8367863132,25105686548,-75312865340,
 225946984628,-677824176668,2033506084436]

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Last modified April 25 07:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)