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A025135 as a simple table

n a(n)
1 1
2 4
3 22
4 238
5 5825
6 345600
7 51583084
8 19765932032
9 19661794008192
10 51082239411000000
11 347836712523276735000
12 6221718604078720792473600
13 292819054882445795002015111824
14 36313083181879002042916296055971840
15 11881691691176915544450299522846484375000

[1,4,22,238,5825,345600,51583084,19765932032,
 19661794008192,51082239411000000,
 347836712523276735000,6221718604078720792473600,
 292819054882445795002015111824,
 36313083181879002042916296055971840,
 11881691691176915544450299522846484375000]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)