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A103331 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 2
7 3
8 16
9 52
10 286
11 1403
12 8214
13 54756
14 389833
15 2923757
16 22932960
17 184339572 

[0,0,0,0,0,2,3,16,52,286,1403,8214,54756,389833,
 2923757,22932960,184339572]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)