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A077917 as a simple table

n a(n)
0 1
1 -1
2 5
3 -11
4 33
5 -87
6 241
7 -655
8 1793
9 -4895
10 13377
11 -36543
12 99841
13 -272767
14 745217
15 -2035967
16 5562369
17 -15196671
18 41518081
19 -113429503
20 309895169
21 -846649343
22 2313089025
23 -6319476735
24 17265131521
25 -47169216511
26 128868696065
27 -352075825151
28 961889042433
29 -2627929735167

[1,-1,5,-11,33,-87,241,-655,1793,-4895,13377,
 -36543,99841,-272767,745217,-2035967,5562369,
 -15196671,41518081,-113429503,309895169,
 -846649343,2313089025,-6319476735,17265131521,
 -47169216511,128868696065,-352075825151,
 961889042433,-2627929735167]

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Last modified August 18 10:29 EDT 2022. Contains 356211 sequences. (Running on oeis4.)