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A063023 as a simple table

n a(n)
0 0
1 1
2 1
3 2
4 6
5 21
6 77
7 292
8 1143
9 4592
10 18821
11 78364
12 330512
13 1409149
14 6063526
15 26298592
16 114849110
17 504595293
18 2228824203
19 9891723114
20 44087704836
21 197255893945
22 885630834120
23 3988872011820
24 18017892014655

[0,1,1,2,6,21,77,292,1143,4592,18821,78364,330512,
 1409149,6063526,26298592,114849110,504595293,
 2228824203,9891723114,44087704836,197255893945,
 885630834120,3988872011820,18017892014655]

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Last modified January 26 20:11 EST 2020. Contains 331288 sequences. (Running on oeis4.)