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A031872 as a simple table

n a(n)
1 1
2 2
3 6
4 13
5 26
6 28
7 36
8 42
9 45 

[1,2,6,13,26,28,36,42,45]

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Last modified April 24 07:54 EDT 2024. Contains 371922 sequences. (Running on oeis4.)