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A130558 as a simple table

n a(n)
2 1
3 9
4 360
5 9000
6 7000
7 343000
8 8232000
9 666792000
10 7334712000
11 887500152000
12 11537501976000
13 1949837833944000
14 1949837833944000
15 1949837833944000
16 265177945416384000
17 76636426225334976000
18 161788010920151616000

[1,9,360,9000,7000,343000,8232000,666792000,
 7334712000,887500152000,11537501976000,
 1949837833944000,1949837833944000,
 1949837833944000,265177945416384000,
 76636426225334976000,161788010920151616000]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)