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A273057 as a simple table

n a(n)
1 8
2 108
3 4320
4 151200
5 3326400
6 108108000
7 10291881600
8 586637251200
9 53970627110400
10 5869305698256000
11 667144414368432000
12 26928374543598528000
13 3036174229790734032000
14 522221967524006253504000
15 159538811078583910445472000
16 16911113974329894507220032000
17 1164048345233041071913645536000
18 304315495968066451657424475840000
19 28544793521804633165466415833792000
20 2026680340048128954748115524199232000

[8,108,4320,151200,3326400,108108000,10291881600,
 586637251200,53970627110400,5869305698256000,
 667144414368432000,26928374543598528000,
 3036174229790734032000,522221967524006253504000,
 159538811078583910445472000,
 16911113974329894507220032000,
 1164048345233041071913645536000,
 304315495968066451657424475840000,
 28544793521804633165466415833792000,
 2026680340048128954748115524199232000]

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Last modified September 16 16:54 EDT 2024. Contains 375976 sequences. (Running on oeis4.)