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A203039 as a simple table

n a(n)
1 1
2 4
3 54
4 1528
5 74200
6 5513088
7 581644210
8 82684556736
9 15235237204524
10 3531551323602720
11 1005740523344585424
12 345183221074356437760
13 140516542507328903804616
14 66939548487495601942276224
15 36891997133237736166187224200

[1,4,54,1528,74200,5513088,581644210,82684556736,
 15235237204524,3531551323602720,
 1005740523344585424,345183221074356437760,
 140516542507328903804616,
 66939548487495601942276224,
 36891997133237736166187224200]

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Last modified March 29 09:32 EDT 2024. Contains 371268 sequences. (Running on oeis4.)