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A254715 as a simple table

n a(n)
1 3
2 4
3 8
4 18
5 55
6 137
7 415
8 941
9 2854
10 7743
11 21959
12 61545
13 175817
14 496688

[3,4,8,18,55,137,415,941,2854,7743,21959,61545,
 175817,496688]

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Last modified April 21 07:37 EDT 2024. Contains 371850 sequences. (Running on oeis4.)