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A165405 as a simple table

n a(n)
0 1
1 3
2 3
3 15
4 3
5 87
6 -69
7 591
8 -1005
9 4551
10 -10581
11 37887
12 -101373
13 328695
14 -936933
15 2909103
16 -8530701
17 25985319
18 -77169525
19 233081439
20 -696098589
21 2094587223
22 -6271178757
23 18838702095
24 -56465774637
25 169497987207
26 -508292635029

[1,3,3,15,3,87,-69,591,-1005,4551,-10581,37887,
 -101373,328695,-936933,2909103,-8530701,25985319,
 -77169525,233081439,-696098589,2094587223,
 -6271178757,18838702095,-56465774637,169497987207,
 -508292635029]

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Last modified June 25 12:01 EDT 2019. Contains 324352 sequences. (Running on oeis4.)