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A222567 as a simple table

n a(n)
1 1
2 1
3 5
4 18
5 59
6 200
7 820
8 3014
9 11364
10 42748
11 164652
12 627034
13 2399454
14 9229494
15 35487202
16 137093302
17 528389870
18 2048668614
19 7920616338
20 30777407006
21 119302534874
22 464420087686
23 1804371752146
24 7034061387558
25 27382292281570

[1,1,5,18,59,200,820,3014,11364,42748,164652,
 627034,2399454,9229494,35487202,137093302,
 528389870,2048668614,7920616338,30777407006,
 119302534874,464420087686,1804371752146,
 7034061387558,27382292281570]

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Last modified July 4 22:49 EDT 2022. Contains 355086 sequences. (Running on oeis4.)