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A217154 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 2
10 14
11 62
12 235
13 821
14 2868
15 10193
16 36404
17 130174
18 466913
19 1681999
20 6083873

[0,0,0,0,0,0,0,0,2,14,62,235,821,2868,10193,36404,
 130174,466913,1681999,6083873]

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Last modified April 19 16:08 EDT 2024. Contains 371794 sequences. (Running on oeis4.)