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A334323 as a simple table

n a(n)
1 4
2 32
3 156
4 640
5 2380
6 8304
7 27580
8 89216
9 280980
10 869360
11 2649284
12 7967808
13 23722244
14 69977040
15 204845220
16 595628032
17 1721605028
18 4950241488
19 14167239268
20 40376066560
21 114635882508
22 324361357936
23 914912704060
24 2573307218304
25 7218778025700
26 20201661701936
27 56408010198948

[4,32,156,640,2380,8304,27580,89216,280980,869360,
 2649284,7967808,23722244,69977040,204845220,
 595628032,1721605028,4950241488,14167239268,
 40376066560,114635882508,324361357936,
 914912704060,2573307218304,7218778025700,
 20201661701936,56408010198948]

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Last modified May 20 12:27 EDT 2024. Contains 372712 sequences. (Running on oeis4.)