A069143 - OEIS

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A069143 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`7`
`5`		`18`
`6`		`31`
`7`		`57`
`8`		`180`
`9`		`320`
`10`		`1092`
`11`		`2478`
`12`		`10368`
`13`		`25704`
`14`		`100800`
`15`		`393120`
`16`		`1965600`
`17`		`10326624`
`18`		`39657600`
`19`		`131580288`
`20`		`511223790`
`21`		`1469266560`
`22`		`4911616440`
`23`		`22120488000`
`24`		`95841111600`
`25`		`460020244320`
`26`		`2163425531904`
`27`		`9805180170240`

[1,1,3,7,18,31,57,180,320,1092,2478,10368,25704, 100800,393120,1965600,10326624,39657600,131580288, 511223790,1469266560,4911616440,22120488000, 95841111600,460020244320,2163425531904, 9805180170240]

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Last modified April 18 02:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)