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A223142 as a simple table

n a(n)
0 1
1 2
2 0
3 0
4 2
5 -4
6 8
7 -16
8 32
9 -56
10 88
11 -112
12 64
13 240
14 -1264
15 4064
16 -10814
17 25500
18 -54200
19 102832
20 -166020
21 190808
22 22304
23 -1058880
24 4412424
25 -13496544
26 35306480
27 -82326496
28 172081840
29 -315115328
30 464910368
31 -363016000
32 -871587808
33 5713552456
34 -20289991016

[1,2,0,0,2,-4,8,-16,32,-56,88,-112,64,240,-1264,
 4064,-10814,25500,-54200,102832,-166020,190808,
 22304,-1058880,4412424,-13496544,35306480,
 -82326496,172081840,-315115328,464910368,
 -363016000,-871587808,5713552456,-20289991016]

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Last modified February 22 22:43 EST 2024. Contains 370265 sequences. (Running on oeis4.)