A000898 - OEIS

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A000898 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`20`
`4`		`76`
`5`		`312`
`6`		`1384`
`7`		`6512`
`8`		`32400`
`9`		`168992`
`10`		`921184`
`11`		`5222208`
`12`		`30710464`
`13`		`186753920`
`14`		`1171979904`
`15`		`7573069568`
`16`		`50305536256`
`17`		`342949298688`
`18`		`2396286830080`
`19`		`17138748412928`
`20`		`125336396368896`
`21`		`936222729254912`
`22`		`7136574106003456`
`23`		`55466948299223040`
`24`		`439216305474605056`
`25`		`3540846129311916032`

[1,2,6,20,76,312,1384,6512,32400,168992,921184, 5222208,30710464,186753920,1171979904,7573069568, 50305536256,342949298688,2396286830080, 17138748412928,125336396368896,936222729254912, 7136574106003456,55466948299223040, 439216305474605056,3540846129311916032]

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Last modified April 24 08:59 EDT 2024. Contains 371935 sequences. (Running on oeis4.)