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A130018
as a simple table
n
a(n)
0
1
1
1
2
1
3
2
4
4
5
9
6
22
7
56
8
152
9
428
10
1257
[1,1,1,2,4,9,22,56,152,428,1257]
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Last modified April 26 07:58 EDT 2024. Contains 371991 sequences. (Running on oeis4.)