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A000133 as a simple table

n a(n)
1 2
2 5
3 30
4 2288
5 67172352
6 144115192303714304
7 1329227995784915891206435945914040320
8 226156424291633194186662080095093570364871077725232774230036394136943198208

[2,5,30,2288,67172352,144115192303714304,
 1329227995784915891206435945914040320,
 22615642429163319418666208009509357036487107772523\
 2774230036394136943198208]

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Last modified August 14 05:03 EDT 2022. Contains 356110 sequences. (Running on oeis4.)