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A306563 as a simple table

n a(n)
1 0
2 0
3 1
4 2
5 5
6 11
7 26
8 65
9 157
10 398
11 1017
12 2636
13 6891
14 18210
15 48459
16 129935 

[0,0,1,2,5,11,26,65,157,398,1017,2636,6891,18210,
 48459,129935]

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Last modified April 24 16:25 EDT 2024. Contains 371961 sequences. (Running on oeis4.)