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A121093 as a simple table

n a(n)
0 0
1 0
2 1
3 8
4 31
5 132
6 500
7 1924
8 7216
9 27194
10 101978
11 383319
12 1440970 

[0,0,1,8,31,132,500,1924,7216,27194,101978,383319,
 1440970]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)