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A056373 as a simple table

n a(n)
1 4
2 16
3 40
4 160
5 280
6 2176
7 2800
8 17920
9 44224
10 263296
11 419872
12 4280320
13 5594000
14 44751616
15 134391040
16 539054080
17 1073758360
18 11453771776
19 15271054960
20 137575813120
21 366528038400
22 1759220283904
23 3198580043440
24 35193817661440
25 56294998751872

[4,16,40,160,280,2176,2800,17920,44224,263296,
 419872,4280320,5594000,44751616,134391040,
 539054080,1073758360,11453771776,15271054960,
 137575813120,366528038400,1759220283904,
 3198580043440,35193817661440,56294998751872]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)