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A115145 as a simple table

n a(n)
0 1
1 -6
2 9
3 -2
4 0
5 0
6 -1
7 -6
8 -27
9 -110
10 -429
11 -1638
12 -6188
13 -23256
14 -87210
15 -326876
16 -1225785
17 -4601610
18 -17298645
19 -65132550
20 -245642760
21 -927983760
22 -3511574910
23 -13309856820
24 -50528160150
25 -192113383644
26 -731508653106
27 -2789279908316
28 -10649977831752
29 -40715807302800

[1,-6,9,-2,0,0,-1,-6,-27,-110,-429,-1638,-6188,
 -23256,-87210,-326876,-1225785,-4601610,-17298645,
 -65132550,-245642760,-927983760,-3511574910,
 -13309856820,-50528160150,-192113383644,
 -731508653106,-2789279908316,-10649977831752,
 -40715807302800]

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Last modified July 20 11:28 EDT 2019. Contains 325180 sequences. (Running on oeis4.)