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A054849 as a simple table

n a(n)
5 1
6 12
7 84
8 448
9 2016
10 8064
11 29568
12 101376
13 329472
14 1025024
15 3075072
16 8945664
17 25346048
18 70189056
19 190513152
20 508035072
21 1333592064
22 3451650048
23 8820883456
24 22284337152
25 55710842880
26 137950658560
27 338606161920 

[1,12,84,448,2016,8064,29568,101376,329472,
 1025024,3075072,8945664,25346048,70189056,
 190513152,508035072,1333592064,3451650048,
 8820883456,22284337152,55710842880,137950658560,
 338606161920]

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Last modified May 11 10:11 EDT 2024. Contains 372409 sequences. (Running on oeis4.)