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A051769 as a simple table

n a(n)
1 0
2 0
3 1
4 0
5 2
6 2
7 7
8 16
9 47
10 125
11 365
12 1015
13 3069
14 8813
15 26712
16 78717 

[0,0,1,0,2,2,7,16,47,125,365,1015,3069,8813,26712,
 78717]

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Last modified April 25 11:39 EDT 2024. Contains 371969 sequences. (Running on oeis4.)