A000986 - OEIS

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A000986 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`4`
`4`		`18`
`5`		`112`
`6`		`820`
`7`		`6912`
`8`		`66178`
`9`		`708256`
`10`		`8372754`
`11`		`108306280`
`12`		`1521077404`
`13`		`23041655136`
`14`		`374385141832`
`15`		`6493515450688`
`16`		`119724090206940`
`17`		`2337913445039488`
`18`		`48195668439235612`
`19`		`1045828865817825264`
`20`		`23826258064972682776`
`21`		`568556266922455167040`

[1,0,1,4,18,112,820,6912,66178,708256,8372754, 108306280,1521077404,23041655136,374385141832, 6493515450688,119724090206940,2337913445039488, 48195668439235612,1045828865817825264, 23826258064972682776,568556266922455167040]

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)