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A047086 as a simple table

n a(n)
0 1
1 2
2 5
3 15
4 46
5 143
6 450
7 1429
8 4570
9 14698
10 47491
11 154042
12 501283
13 1635835
14 5351138
15 17541671
16 57610988
17 189521640
18 624389105
19 2059824523
20 6803433916
21 22495796651
22 74457478476
23 246667937610
24 817866796549
25 2713874203112
26 9011747680649
27 29944572743724

[1,2,5,15,46,143,450,1429,4570,14698,47491,154042,
 501283,1635835,5351138,17541671,57610988,
 189521640,624389105,2059824523,6803433916,
 22495796651,74457478476,246667937610,817866796549,
 2713874203112,9011747680649,29944572743724]

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Last modified April 25 06:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)