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A279744 as a simple table

n a(n)
1 0
2 26
3 168
4 736
5 2948
6 11434
7 42494
8 154886
9 554894
10 1962216
11 6863344
12 23793932
13 81876322
14 279975202
15 952219158
16 3223476464
17 10867630142
18 36506995228
19 122242241376
20 408146874402
21 1359207500258
22 4515810568242
23 14971262615738

[0,26,168,736,2948,11434,42494,154886,554894,
 1962216,6863344,23793932,81876322,279975202,
 952219158,3223476464,10867630142,36506995228,
 122242241376,408146874402,1359207500258,
 4515810568242,14971262615738]

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Last modified July 4 20:08 EDT 2022. Contains 355086 sequences. (Running on oeis4.)