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A259087 as a simple table

n a(n)
1 0
2 1
3 1
4 4
5 6
6 28
7 83
8 289
9 1030
10 3860
11 14154
12 53222
13 202001
14 771255
15 2945803
16 11304541
17 43564276
18 168413249
19 652292925
20 2531493604
21 9845752518
22 38372748112

[0,1,1,4,6,28,83,289,1030,3860,14154,53222,202001,
 771255,2945803,11304541,43564276,168413249,
 652292925,2531493604,9845752518,38372748112]

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Last modified April 23 10:26 EDT 2024. Contains 371905 sequences. (Running on oeis4.)