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A306827
as a simple table
n
a(n)
2
1
3
2
4
5
5
13
6
59
7
285
8
1987
9
16057
10
149430
11
1551863
12
17747299
13
221015026
[1,2,5,13,59,285,1987,16057,149430,1551863, 17747299,221015026]
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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)