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A018681 as a simple table

n a(n)
1 1
2 2
3 4
4 8
5 16
6 53
7 106
8 212
9 424
10 848

[1,2,4,8,16,53,106,212,424,848]

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Last modified January 17 20:36 EST 2020. Contains 330987 sequences. (Running on oeis4.)