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A133217 as a simple table

n a(n)
1 0
2 1
3 2
4 20
5 55
6 667
7 1856
8 22646
9 63037
10 769285
11 2141390
12 26133032
13 72744211
14 887753791
15 2471161772
16 30157495850
17 83946756025
18 1024467105097
19 2851718543066
20 34801724077436
21 96874483708207
22 1182234151527715
23 3290880727535960
24 40161159427864862

[0,1,2,20,55,667,1856,22646,63037,769285,2141390,
 26133032,72744211,887753791,2471161772,
 30157495850,83946756025,1024467105097,
 2851718543066,34801724077436,96874483708207,
 1182234151527715,3290880727535960,
 40161159427864862]

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Last modified December 13 17:17 EST 2019. Contains 329970 sequences. (Running on oeis4.)