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A113996 as a simple table

n a(n)
0 1
1 5
2 25
3 125
4 665
5 3825
6 23977
7 164105
8 1225225
9 9954981
10 87750065
11 836288501
12 8587255313
13 94679407585
14 1117195703729
15 14064269132049
16 188338637653329
17 2675444736963557
18 40212844609440521
19 637967091730240877

[1,5,25,125,665,3825,23977,164105,1225225,9954981,
 87750065,836288501,8587255313,94679407585,
 1117195703729,14064269132049,188338637653329,
 2675444736963557,40212844609440521,
 637967091730240877]

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Last modified July 23 15:54 EDT 2024. Contains 374552 sequences. (Running on oeis4.)