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A007162 as a simple table

n a(n)
0 1
1 1
2 2
3 7
4 24
5 96
6 388
7 1667
8 7278
9 32726
10 149232
11 692014
12 3244182
13 15374906
14 73474008
15 353835147
16 1714967402
17 8360511370
18 40964207460
19 201630767026
20 996494168808
21 4943036743112
22 24601517883704
23 122815436413582
24 614828204108840

[1,1,2,7,24,96,388,1667,7278,32726,149232,692014,
 3244182,15374906,73474008,353835147,1714967402,
 8360511370,40964207460,201630767026,996494168808,
 4943036743112,24601517883704,122815436413582,
 614828204108840]

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Last modified December 12 20:12 EST 2019. Contains 329961 sequences. (Running on oeis4.)