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A307006 as a simple table

n a(n)
0 1
1 1
2 4
3 20
4 130
5 1052
6 10214
7 115684
8 1497458
9 21806372
10 352834942
11 6279885284
12 121932835754
13 2564788969108
14 58098821674742
15 1410088008633812
16 36505125340079074
17 1004131069129741124
18 29244927598399536878
19 899066450011962665092
20 29094401487631077315482
21 988590340245276942963764

[1,1,4,20,130,1052,10214,115684,1497458,21806372,
 352834942,6279885284,121932835754,2564788969108,
 58098821674742,1410088008633812,36505125340079074,
 1004131069129741124,29244927598399536878,
 899066450011962665092,29094401487631077315482,
 988590340245276942963764]

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Last modified April 28 02:08 EDT 2024. Contains 372020 sequences. (Running on oeis4.)