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A272743 as a simple table

n a(n)
0 1
1 5
2 17
3 69
4 277
5 1109
6 4437
7 17749
8 70997
9 283989
10 1135957
11 4543829
12 18175317
13 72701269
14 290805077
15 1163220309 

[1,5,17,69,277,1109,4437,17749,70997,283989,
 1135957,4543829,18175317,72701269,290805077,
 1163220309]

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Last modified April 24 19:06 EDT 2024. Contains 371962 sequences. (Running on oeis4.)