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A093983 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 4
6 54
7 1052
8 14611
9 181948
10 2096211
11 22788376
12 238482555
13 2433024862
14 24386079471
15 241344901528
16 2366884988610
17 23059199264485
18 223571124198381 

[0,0,0,0,4,54,1052,14611,181948,2096211,22788376,
 238482555,2433024862,24386079471,241344901528,
 2366884988610,23059199264485,223571124198381]

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Last modified July 14 10:28 EDT 2024. Contains 374318 sequences. (Running on oeis4.)