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A180874 as a simple table

n a(n)
1 1
2 1
3 5
4 56
5 1092
6 32670
7 1387815
8 79389310
9 5882844968
10 548129834616
11 62720089624920
12 8646340208462880
13 1413380381699497200
14 270316008395632253340
15 59800308109377016336155
16 15151722444639718679892150
17 4359147487054262623576455600

[1,1,5,56,1092,32670,1387815,79389310,5882844968,
 548129834616,62720089624920,8646340208462880,
 1413380381699497200,270316008395632253340,
 59800308109377016336155,
 15151722444639718679892150,
 4359147487054262623576455600]

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)