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A012342 as a simple table

n a(n)
0 0
1 2
2 8
3 368
4 18048
5 1827072
6 253363200
7 50403563520
8 13158813696000
9 4414765984972800
10 1841972633056051200
11 936689336904269168640
12 569861032837432328847360
13 408713488929007199437455360

[0,2,8,368,18048,1827072,253363200,50403563520,
 13158813696000,4414765984972800,
 1841972633056051200,936689336904269168640,
 569861032837432328847360,
 408713488929007199437455360]

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Last modified November 27 13:09 EST 2022. Contains 358405 sequences. (Running on oeis4.)