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A070891 as a simple table

n a(n)
1 30
2 15
3 105
4 210
5 2310
6 5005
7 1616615
8 9699690
9 223092870
10 111546435
11 2156564410
12 100280245065
13 3710369067405
14 7420738134810
15 6541380665835015

[30,15,105,210,2310,5005,1616615,9699690,
 223092870,111546435,2156564410,100280245065,
 3710369067405,7420738134810,6541380665835015]

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Last modified August 15 12:24 EDT 2024. Contains 375173 sequences. (Running on oeis4.)