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A211580 as a simple table

n a(n)
1 24
2 116
3 396
4 1108
5 2954
6 7640
7 19676
8 51060
9 133728
10 356546
11 961630
12 2639484
13 7312996
14 20540736
15 58061306
16 165704028
17 474754182
18 1368989652
19 3956576274
20 11483585258
21 33373408392
22 97258918906
23 283647632398
24 828748613072

[24,116,396,1108,2954,7640,19676,51060,133728,
 356546,961630,2639484,7312996,20540736,58061306,
 165704028,474754182,1368989652,3956576274,
 11483585258,33373408392,97258918906,283647632398,
 828748613072]

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Last modified July 3 11:18 EDT 2022. Contains 355050 sequences. (Running on oeis4.)