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A000336 as a simple table

n a(n)
1 1
2 2
3 3
4 4
5 24
6 576
7 165888
8 9172942848
9 21035720123168587776
10 18437563379178327736384102280592359424
11 590180110002114158896983994712576414865667267958188575935810179040280576

[1,2,3,4,24,576,165888,9172942848,
 21035720123168587776,
 18437563379178327736384102280592359424,
 59018011000211415889698399471257641486566726795818\
 8575935810179040280576]

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Last modified December 18 18:07 EST 2018. Contains 318243 sequences. (Running on oeis4.)