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A098135 as a simple table

n a(n)
0 1
1 5
2 9
3 455
4 2618
5 315
6 271700
7 56751695
8 6930
9 3708514810
10 32152414840
11 135135
12 19749267715100
13 314645828225300
14 34918884
15 113543477411038675
16 473930651619825400
17 669278610
18 467655703593591713200

[1,5,9,455,2618,315,271700,56751695,6930,
 3708514810,32152414840,135135,19749267715100,
 314645828225300,34918884,113543477411038675,
 473930651619825400,669278610,
 467655703593591713200]

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)