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A064183 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 3
5 10
6 39
7 490
8 20631
9 10349290
10 213941840151
11 2214253254659846890
12 473721461633379426414550183191
13 1048939288228833100615882755549676600679754298090 

[1,1,1,2,3,10,39,490,20631,10349290,213941840151,
 2214253254659846890,
 473721461633379426414550183191,
 1048939288228833100615882755549676600679754298090]

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Last modified June 4 08:21 EDT 2024. Contains 373092 sequences. (Running on oeis4.)