A221020 - OEIS

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A221020 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`3`
`6`		`6`
`7`		`5`
`8`		`360`
`9`		`420`
`10`		`56`
`11`		`756`
`12`		`75600`
`13`		`415800`
`14`		`2494800`
`15`		`8424`
`16`		`1223040`
`17`		`504504000`
`18`		`9081072000`
`19`		`5145940800`
`20`		`111152321280`
`21`		`754247894400`
`22`		`37712394720000`
`23`		`430747632000`
`24`		`14454741869568`
`25`		`319672175961600`
`26`		`4080179409546240`
`27`		`14011605115200000`
`28`		`1653814216454400000`

[1,1,1,2,3,6,5,360,420,56,756,75600,415800, 2494800,8424,1223040,504504000,9081072000, 5145940800,111152321280,754247894400, 37712394720000,430747632000,14454741869568, 319672175961600,4080179409546240, 14011605115200000,1653814216454400000]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)