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A078405
as a simple table
n
a(n)
1
2
2
2
3
5
4
11
5
18
6
50
7
131
8
226
9
438
[2,2,5,11,18,50,131,226,438]
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Last modified April 19 08:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)