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A220119 as a simple table

n a(n)
0 1
1 12
2 804
3 88680
4 12386340
5 1985320512
6 348219006744
7 65085592725648
8 12753825281316900
9 2592090993453733200
10 542345058701093666304
11 116192631187950808203648
12 25387248470938096734043416
13 5639653178340668177808156480
14 1270704973262949380127900086640

[1,12,804,88680,12386340,1985320512,348219006744,
 65085592725648,12753825281316900,
 2592090993453733200,542345058701093666304,
 116192631187950808203648,
 25387248470938096734043416,
 5639653178340668177808156480,
 1270704973262949380127900086640]

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Last modified May 10 21:08 EDT 2021. Contains 343780 sequences. (Running on oeis4.)