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A088139 as a simple table

n a(n)
0 0
1 1
2 2
3 -2
4 -16
5 -20
6 56
7 232
8 128
9 -1136
10 -3040
11 736
12 19712
13 35008
14 -48256
15 -306560
16 -323584
17 1192192
18 4325888
19 1498624
20 -22958080
21 -54907904
22 27932672
23 385312768
24 603029504
25 -1105817600
26 -5829812224
27 -5024718848
28 24929435648
29 80007184384

[0,1,2,-2,-16,-20,56,232,128,-1136,-3040,736,
 19712,35008,-48256,-306560,-323584,1192192,
 4325888,1498624,-22958080,-54907904,27932672,
 385312768,603029504,-1105817600,-5829812224,
 -5024718848,24929435648,80007184384]

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)