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A155328
as a simple table
n
a(n)
5
1
6
4
7
13
8
45
9
200
10
827
11
3807
12
19771
13
133675
14
1067815
15
10084717
16
113366836
17
1442256377
[1,4,13,45,200,827,3807,19771,133675,1067815, 10084717,113366836,1442256377]
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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)