A121781 - OEIS

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A121781 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`8`
`3`		`66`
`4`		`366`
`5`		`1640`
`6`		`6404`
`7`		`22696`
`8`		`74832`
`9`		`233312`
`10`		`695680`
`11`		`2000128`
`12`		`5578752`
`13`		`15166464`
`14`		`40336384`
`15`		`105256960`
`16`		`270135296`
`17`		`683188224`
`18`		`1705443328`
`19`		`4207935488`
`20`		`10274078720`
`21`		`24848105472`
`22`		`59579301888`
`23`		`141734445056`

[0,8,66,366,1640,6404,22696,74832,233312,695680, 2000128,5578752,15166464,40336384,105256960, 270135296,683188224,1705443328,4207935488, 10274078720,24848105472,59579301888,141734445056]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)