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A147247
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
13
6
41
7
245
8
1633
9
20989
10
305457
11
6244799
12
168722653
13
6674190341
[1,1,1,1,13,41,245,1633,20989,305457,6244799, 168722653,6674190341]
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Last modified September 24 22:14 EDT 2023. Contains 365582 sequences. (Running on oeis4.)