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A271427 as a simple table

n a(n)
0 0
1 7
2 42
3 301
4 2100
5 14707
6 102942
7 720601
8 5044200
9 35309407
10 247165842
11 1730160901
12 12111126300
13 84777884107
14 593445188742
15 4154116321201
16 29078814248400
17 203551699738807
18 1424861898171642
19 9974033287201501
20 69818233010410500
21 488727631072873507
22 3421093417510114542

[0,7,42,301,2100,14707,102942,720601,5044200,
 35309407,247165842,1730160901,12111126300,
 84777884107,593445188742,4154116321201,
 29078814248400,203551699738807,1424861898171642,
 9974033287201501,69818233010410500,
 488727631072873507,3421093417510114542]

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Last modified February 21 16:28 EST 2018. Contains 299414 sequences. (Running on oeis4.)