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A316102 as a simple table

n a(n)
0 0
1 1
2 1
3 1
4 5
5 21
6 126
7 918
8 7767
9 73972
10 784751
11 9144147
12 115883755
13 1584170940
14 23204993605
15 362165818664
16 5993702566315
17 104749261905895
18 1926269870412241
19 37155958512895667
20 749685441940827386
21 15783243142166081008
22 345955075391798325101

[0,1,1,1,5,21,126,918,7767,73972,784751,9144147,
 115883755,1584170940,23204993605,362165818664,
 5993702566315,104749261905895,1926269870412241,
 37155958512895667,749685441940827386,
 15783243142166081008,345955075391798325101]

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Last modified September 21 12:54 EDT 2021. Contains 347598 sequences. (Running on oeis4.)