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A203761 as a simple table

n a(n)
1 0
2 0
3 1
4 0
5 1
6 2
7 3
8 14
9 81
10 1436
11 137649
12 208931366
13 29059416843159
14 6075423684633064285934
15 176549538697128711514244195056431069
16 1072613254042004122844787854494321338954112455109333945016

[0,0,1,0,1,2,3,14,81,1436,137649,208931366,
 29059416843159,6075423684633064285934,
 176549538697128711514244195056431069,
 10726132540420041228447878544943213389541124551093\
 33945016]

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Last modified March 28 07:33 EDT 2024. Contains 371235 sequences. (Running on oeis4.)