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A038172
as a simple table
n
a(n)
1
1
2
1
3
5
4
28
5
225
6
2274
7
24955
8
286143
9
3367443
10
40358811
11
490598186
[1,1,5,28,225,2274,24955,286143,3367443,40358811, 490598186]
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Last modified March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)