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A006789 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 14
5 43
6 143
7 509
8 1922
9 7651
10 31965
11 139685
12 636712
13 3020203
14 14878176
15 75982829
16 401654560
17 2194564531
18 12377765239
19 71980880885
20 431114329728
21 2656559925883
22 16825918195484
23 109439943234749
24 730365368850192

[1,1,2,5,14,43,143,509,1922,7651,31965,139685,
 636712,3020203,14878176,75982829,401654560,
 2194564531,12377765239,71980880885,431114329728,
 2656559925883,16825918195484,109439943234749,
 730365368850192]

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)