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A052853 as a simple table

n a(n)
0 0
1 1
2 2
3 5
4 14
5 42
6 138
7 466
8 1643
9 5919
10 21773
11 81279
12 307483
13 1175352
14 4534161
15 17626999
16 68992703
17 271641249
18 1075144364
19 4275274867
20 17071822275
21 68428152475
22 275217386092
23 1110375948303
24 4492641333003
25 18225081419544
26 74111194585752
27 302040709982249

[0,1,2,5,14,42,138,466,1643,5919,21773,81279,
 307483,1175352,4534161,17626999,68992703,
 271641249,1075144364,4275274867,17071822275,
 68428152475,275217386092,1110375948303,
 4492641333003,18225081419544,74111194585752,
 302040709982249]

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Last modified March 28 14:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)