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A230251 as a simple table

n a(n)
0 1
1 4
2 41
3 602
4 11304
5 257400
6 6881160
7 211170960
8 7315701120
9 282398538240
10 12019910112000
11 559278036979200
12 28242651241728000
13 1538394175334016000
14 89912239244860032000
15 5612575361948755200000
16 372687441873534627840000
17 26231028469670851706880000

[1,4,41,602,11304,257400,6881160,211170960,
 7315701120,282398538240,12019910112000,
 559278036979200,28242651241728000,
 1538394175334016000,89912239244860032000,
 5612575361948755200000,372687441873534627840000,
 26231028469670851706880000]

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Last modified March 29 06:34 EDT 2024. Contains 371265 sequences. (Running on oeis4.)