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A174459 as a simple table

n a(n)
4 0
5 0
6 0
7 1
8 1
9 1
10 3
11 10
12 22
13 36
14 72
15 167
16 393
17 894
18 1950
19 4327
20 9775 

[0,0,0,1,1,1,3,10,22,36,72,167,393,894,1950,4327,
 9775]

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Last modified April 25 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)