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A273716 as a simple table

n a(n)
2 1
3 1
4 3
5 8
6 23
7 69
8 212
9 662
10 2091
11 6661
12 21359
13 68850
14 222892
15 724175
16 2360010
17 7711148
18 25252819
19 82863807
20 272385447
21 896774552
22 2956599075
23 9760032991
24 32255829642
25 106713308118
26 353381245728
27 1171248042277
28 3885122245389
29 12896869926038

[1,1,3,8,23,69,212,662,2091,6661,21359,68850,
 222892,724175,2360010,7711148,25252819,82863807,
 272385447,896774552,2956599075,9760032991,
 32255829642,106713308118,353381245728,
 1171248042277,3885122245389,12896869926038]

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Last modified April 16 12:45 EDT 2021. Contains 343037 sequences. (Running on oeis4.)