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A149766 as a simple table

n a(n)
0 1
1 1
2 5
3 19
4 73
5 311
6 1311
7 5649
8 24813
9 109253
10 486623
11 2180255
12 9810137
13 44389337
14 201532081
15 918049895
16 4195559999
17 19220439983
18 88266951791
19 406225389833
20 1873032183291
21 8651794361859
22 40027647209457
23 185460795520767
24 860488331810451
25 3997459914921589
26 18592433852321707
27 86570131609594613

[1,1,5,19,73,311,1311,5649,24813,109253,486623,
 2180255,9810137,44389337,201532081,918049895,
 4195559999,19220439983,88266951791,406225389833,
 1873032183291,8651794361859,40027647209457,
 185460795520767,860488331810451,3997459914921589,
 18592433852321707,86570131609594613]

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Last modified February 25 13:12 EST 2024. Contains 370330 sequences. (Running on oeis4.)