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A152690 as a simple table

n a(n)
1 1
2 2
3 4
4 16
5 304
6 34864
7 24918064
8 125436246064
9 5056710181206064
10 1834938528961266006064
11 6658608419043265483506006064
12 265790273955000365854215115506006064 

[1,2,4,16,304,34864,24918064,125436246064,
 5056710181206064,1834938528961266006064,
 6658608419043265483506006064,
 265790273955000365854215115506006064]

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)