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A000110 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 15
5 52
6 203
7 877
8 4140
9 21147
10 115975
11 678570
12 4213597
13 27644437
14 190899322
15 1382958545
16 10480142147
17 82864869804
18 682076806159
19 5832742205057
20 51724158235372
21 474869816156751
22 4506715738447323
23 44152005855084346
24 445958869294805289
25 4638590332229999353
26 49631246523618756274

[1,1,2,5,15,52,203,877,4140,21147,115975,678570,
 4213597,27644437,190899322,1382958545,10480142147,
 82864869804,682076806159,5832742205057,
 51724158235372,474869816156751,4506715738447323,
 44152005855084346,445958869294805289,
 4638590332229999353,49631246523618756274]

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Last modified January 17 18:45 EST 2019. Contains 319251 sequences. (Running on oeis4.)