A149923 - OEIS

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A149923 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`5`
`3`		`15`
`4`		`47`
`5`		`159`
`6`		`567`
`7`		`2079`
`8`		`7920`
`9`		`30827`
`10`		`122432`
`11`		`495884`
`12`		`2034691`
`13`		`8466701`
`14`		`35632214`
`15`		`151397685`
`16`		`649417899`
`17`		`2806992134`
`18`		`12221505766`
`19`		`53565228368`
`20`		`236125050931`
`21`		`1046671869520`
`22`		`4662417859457`
`23`		`20863697406632`
`24`		`93761573243960`
`25`		`422995742344138`
`26`		`1915298621788458`
`27`		`8701706539380666`

[1,2,5,15,47,159,567,2079,7920,30827,122432, 495884,2034691,8466701,35632214,151397685, 649417899,2806992134,12221505766,53565228368, 236125050931,1046671869520,4662417859457, 20863697406632,93761573243960,422995742344138, 1915298621788458,8701706539380666]

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)