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A028417 as a simple table

n a(n)
1 1
2 3
3 10
4 45
5 236
6 1505
7 10914
8 90601
9 837304
10 8610129
11 96625970
12 1184891081
13 15665288484
14 223149696601
15 3394965018886
16 55123430466945
17 948479737691504
18 17289345305870561
19 332019600921360594
20 6713316975465246889
21 142321908843254560540
22 3161718732648662557161

[1,3,10,45,236,1505,10914,90601,837304,8610129,
 96625970,1184891081,15665288484,223149696601,
 3394965018886,55123430466945,948479737691504,
 17289345305870561,332019600921360594,
 6713316975465246889,142321908843254560540,
 3161718732648662557161]

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Last modified June 12 08:13 EDT 2021. Contains 344943 sequences. (Running on oeis4.)