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A151987
as a simple table
n
a(n)
0
1
1
1
2
3
3
13
4
64
5
404
6
2135
7
21077
8
111459
9
1261637
10
10767866
11
111804384
12
659105457
13
18705101130
[1,1,3,13,64,404,2135,21077,111459,1261637, 10767866,111804384,659105457,18705101130]
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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)