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A182096 as a simple table

n a(n)
1 0
2 0
3 1
4 3
5 4
6 21
7 60
8 412
9 2912
10 48360
11 974787
12 56958187
13 2313100395
14 415655894822
15 24672742242739
16 14476157312171612
17 1201604193795794073
18 4552351087690759156124
19 597350655972004799844521
20 142501236416711876143177302627

[0,0,1,3,4,21,60,412,2912,48360,974787,56958187,
 2313100395,415655894822,24672742242739,
 14476157312171612,1201604193795794073,
 4552351087690759156124,597350655972004799844521,
 142501236416711876143177302627]

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Last modified May 24 23:45 EDT 2020. Contains 334581 sequences. (Running on oeis4.)