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A268453 as a simple table

n a(n)
1 5
2 25
3 121
4 581
5 2776
6 13204
7 62535
8 294967
9 1385969
10 6488635
11 30273074
12 140779986
13 652648100
14 3016745162
15 13905372533
16 63924885355
17 293126854872
18 1340883359460
19 6119617278729
20 27867658231717
21 126637380509476
22 574312506857594

[5,25,121,581,2776,13204,62535,294967,1385969,
 6488635,30273074,140779986,652648100,3016745162,
 13905372533,63924885355,293126854872,
 1340883359460,6119617278729,27867658231717,
 126637380509476,574312506857594]

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Last modified April 19 17:51 EDT 2024. Contains 371797 sequences. (Running on oeis4.)