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A178439
as a simple table
n
a(n)
1
4
2
5
3
7
4
27
5
91
6
248
7
347
8
501
9
535
10
767
11
2002
12
2581
13
2677
14
8158
15
15977
16
20666
17
23854
18
72730
19
86816
[4,5,7,27,91,248,347,501,535,767,2002,2581,2677, 8158,15977,20666,23854,72730,86816]
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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)