A007863 - OEIS

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A007863 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`7`
`3`		`31`
`4`		`154`
`5`		`820`
`6`		`4575`
`7`		`26398`
`8`		`156233`
`9`		`943174`
`10`		`5785416`
`11`		`35955297`
`12`		`225914342`
`13`		`1432705496`
`14`		`9158708775`
`15`		`58954911423`
`16`		`381806076426`
`17`		`2485972170888`
`18`		`16263884777805`
`19`		`106858957537838`
`20`		`704810376478024`
`21`		`4664987368511948`
`22`		`30974829705533240`
`23`		`206266525653071416`

[1,2,7,31,154,820,4575,26398,156233,943174, 5785416,35955297,225914342,1432705496,9158708775, 58954911423,381806076426,2485972170888, 16263884777805,106858957537838,704810376478024, 4664987368511948,30974829705533240, 206266525653071416]

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Last modified May 6 08:50 EDT 2024. Contains 372292 sequences. (Running on oeis4.)