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A287974 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 14
5 42
6 132
7 429
8 1430
9 4862
10 16796
11 58785
12 208010
13 742873
14 2674282
15 9693840
16 35351966
17 129613793
18 477477188
19 1766446640
20 6560091544
21 24446776958
22 91389820234
23 342624437057
24 1287886748877
25 4852692487519
26 18325298874477
27 69344013520559

[1,1,2,5,14,42,132,429,1430,4862,16796,58785,
 208010,742873,2674282,9693840,35351966,129613793,
 477477188,1766446640,6560091544,24446776958,
 91389820234,342624437057,1287886748877,
 4852692487519,18325298874477,69344013520559]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)