A026896 - OEIS

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A026896 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`9`
`5`		`57`
`6`		`316`
`7`		`1647`
`8`		`8330`
`9`		`41558`
`10`		`206418`
`11`		`1026392`
`12`		`5126109`
`13`		`25763881`
`14`		`130446758`
`15`		`665644541`
`16`		`3423360416`
`17`		`17740450004`
`18`		`92599616864`
`19`		`486607242642`
`20`		`2573051443194`
`21`		`13683364565774`
`22`		`73146530405912`
`23`		`392867752273562`
`24`		`2119154966713452`

[1,9,57,316,1647,8330,41558,206418,1026392, 5126109,25763881,130446758,665644541,3423360416, 17740450004,92599616864,486607242642, 2573051443194,13683364565774,73146530405912, 392867752273562,2119154966713452]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)