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A032347 as a simple table

n a(n)
0 1
1 0
2 1
3 2
4 6
5 21
6 82
7 354
8 1671
9 8536
10 46814
11 273907
12 1700828
13 11158746
14 77057021
15 558234902
16 4230337018
17 33448622893
18 275322101318
19 2354401779494
20 20878592918183
21 191682453823420
22 1819147694792802

[1,0,1,2,6,21,82,354,1671,8536,46814,273907,
 1700828,11158746,77057021,558234902,4230337018,
 33448622893,275322101318,2354401779494,
 20878592918183,191682453823420,1819147694792802]

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Last modified May 16 14:39 EDT 2021. Contains 343949 sequences. (Running on oeis4.)