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A089901 as a simple table

n a(n)
0 1
1 3
2 18
3 159
4 1848
5 26595
6 456048
7 9073911
8 205437312
9 5214027267
10 146602156800
11 4522866752943
12 151895344131072
13 5516066815430691
14 215373243256915968
15 8996883483108522375
16 400372897193449586688
17 18908951043963993686019

[1,3,18,159,1848,26595,456048,9073911,205437312,
 5214027267,146602156800,4522866752943,
 151895344131072,5516066815430691,
 215373243256915968,8996883483108522375,
 400372897193449586688,18908951043963993686019]

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Last modified July 8 10:23 EDT 2024. Contains 374153 sequences. (Running on oeis4.)