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A054367 as a simple table

n a(n)
0 1
1 1
2 0
3 15
4 110
5 1095
6 10326
7 107056
8 1149126
9 12845166
10 147817170
11 1743640902
12 20987930112
13 256987965373
14 3192889862238
15 40171643818920
16 510996955110550
17 6563060603543652
18 85017386945583408
19 1109744672540225361
20 14585261031466256370
21 192882251992018723947

[1,1,0,15,110,1095,10326,107056,1149126,12845166,
 147817170,1743640902,20987930112,256987965373,
 3192889862238,40171643818920,510996955110550,
 6563060603543652,85017386945583408,
 1109744672540225361,14585261031466256370,
 192882251992018723947]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)