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A158101 as a simple table

n a(n)
0 1
1 4
2 4
3 -16
4 -28
5 176
6 336
7 -2496
8 -4956
9 40112
10 81488
11 -694720
12 -1432688
13 12647488
14 26360896
15 -238598400
16 -501256668
17 4623092400
18 9772018896
19 -91458048960
20 -194263943664
21 1839634167360
22 3923099632704
23 -37510172125440

[1,4,4,-16,-28,176,336,-2496,-4956,40112,81488,
 -694720,-1432688,12647488,26360896,-238598400,
 -501256668,4623092400,9772018896,-91458048960,
 -194263943664,1839634167360,3923099632704,
 -37510172125440]

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Last modified November 28 08:48 EST 2022. Contains 358407 sequences. (Running on oeis4.)