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A213067 as a simple table

n a(n)
0 0
1 -1
2 -2
3 44
4 1408
5 -18016
6 -5095232
7 -139605376
8 56961507328
9 8306292414464
10 -1178066937638912
11 -640316054325354496
12 -7088737339266301952
13 76268423227563817631744
14 18895160315230467816030208
15 -12297988177132848140606242816

[0,-1,-2,44,1408,-18016,-5095232,-139605376,
 56961507328,8306292414464,-1178066937638912,
 -640316054325354496,-7088737339266301952,
 76268423227563817631744,
 18895160315230467816030208,
 -12297988177132848140606242816]

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Last modified September 25 04:28 EDT 2022. Contains 356953 sequences. (Running on oeis4.)