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A174286 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 1
6 3
7 19
8 75
9 291
10 985
11 3011
12 8659
13 24319
14 65899
15 176591
16 464451
17 1211185 

[0,0,0,0,1,3,19,75,291,985,3011,8659,24319,65899,
 176591,464451,1211185]

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Last modified April 23 06:58 EDT 2024. Contains 371906 sequences. (Running on oeis4.)