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A045611
as a simple table
n
a(n)
0
1
1
1
2
2
3
3
4
7
5
13
6
35
7
85
8
254
9
701
10
2377
11
7944
12
25220
13
95910
14
332300
15
1164825
16
4379920
17
16649851
18
58473414
[1,1,2,3,7,13,35,85,254,701,2377,7944,25220,95910, 332300,1164825,4379920,16649851,58473414]
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Last modified April 19 06:44 EDT 2024. Contains 371782 sequences. (Running on oeis4.)