A256880 - OEIS

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A256880 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`9`
`4`		`48`
`5`		`200`
`6`		`1440`
`7`		`8820`
`8`		`80640`
`9`		`653184`
`10`		`7257600`
`11`		`73180800`
`12`		`958003200`
`13`		`11564467200`
`14`		`174356582400`
`15`		`2451889440000`
`16`		`41845579776000`
`17`		`671854030848000`
`18`		`12804747411456000`
`19`		`231125690776780800`
`20`		`4865804016353280000`

[1,4,9,48,200,1440,8820,80640,653184,7257600, 73180800,958003200,11564467200,174356582400, 2451889440000,41845579776000,671854030848000, 12804747411456000,231125690776780800, 4865804016353280000]

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Last modified July 20 03:14 EDT 2024. Contains 374441 sequences. (Running on oeis4.)