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A179815
as a simple table
n
a(n)
1
1
2
3
3
21
4
163
5
1259
6
9657
7
73949
8
566797
9
4352755
10
33501979
11
258431853
12
1997743677
13
15473296249
[1,3,21,163,1259,9657,73949,566797,4352755, 33501979,258431853,1997743677,15473296249]
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Last modified August 30 13:06 EDT 2024. Contains 375543 sequences. (Running on oeis4.)