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A147238 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 5
6 21
7 51
8 289
9 1391
10 7677
11 54075
12 500683
13 5608015
14 82262213
15 1433087781 

[1,1,1,1,5,21,51,289,1391,7677,54075,500683,
 5608015,82262213,1433087781]

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)