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A203006 as a simple table

n a(n)
1 1
2 2
3 5
4 17
5 91
6 758
7 10094
8 215094
9 7378716
10 408057060
11 36439600740
12 5258207000160
13 1226732478115680
14 462844011818878560
15 282472779283129656000
16 278884771717353348456000
17 445462025196173918554440000
18 1151206495594319717393795136000

[1,2,5,17,91,758,10094,215094,7378716,408057060,
 36439600740,5258207000160,1226732478115680,
 462844011818878560,282472779283129656000,
 278884771717353348456000,
 445462025196173918554440000,
 1151206495594319717393795136000]

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Last modified April 23 02:41 EDT 2024. Contains 371906 sequences. (Running on oeis4.)