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A087885 as a simple table

n a(n)
1 0
2 1
3 3
4 17
5 143
6 261
7 551
8 2285
9 18731
10 18995
11 19751
12 62067
13 98051
14 169727
15 442281 

[0,1,3,17,143,261,551,2285,18731,18995,19751,
 62067,98051,169727,442281]

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