A027270 - OEIS

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A027270 as a simple table

`n`		`a(n)`
`2`		`2`
`3`		`10`
`4`		`104`
`5`		`420`
`6`		`3786`
`7`		`14826`
`8`		`131264`
`9`		`510576`
`10`		`4508580`
`11`		`17523506`
`12`		`154773696`
`13`		`602175444`
`14`		`5323519838`
`15`		`20744201142`
`16`		`183586707648`
`17`		`716553432640`
`18`		`6348284151024`
`19`		`24816637181076`
`20`		`220081449149440`
`21`		`861581808936200`
`22`		`7647723960962932`
`23`		`29978812970646870`
`24`		`266322435212031984`

[2,10,104,420,3786,14826,131264,510576,4508580, 17523506,154773696,602175444,5323519838, 20744201142,183586707648,716553432640, 6348284151024,24816637181076,220081449149440, 861581808936200,7647723960962932, 29978812970646870,266322435212031984]

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Last modified May 28 15:12 EDT 2024. Contains 372916 sequences. (Running on oeis4.)