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A156808
as a simple table
n
a(n)
1
1
2
1
3
2
4
6
5
21
6
110
7
789
8
8336
9
117283
10
2026331
11
40302425
12
892278076
[1,1,2,6,21,110,789,8336,117283,2026331,40302425, 892278076]
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Last modified April 24 02:42 EDT 2024. Contains 371917 sequences. (Running on oeis4.)