A081921 - OEIS

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A081921 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`10`
`3`		`36`
`4`		`144`
`5`		`648`
`6`		`3384`
`7`		`20520`
`8`		`145728`
`9`		`1181952`
`10`		`10917504`
`11`		`111601152`
`12`		`1265777280`
`13`		`15544566144`
`14`		`208320719616`
`15`		`2980582728192`
`16`		`46020833427456`
`17`		`751100760576000`
`18`		`13121167636058112`
`19`		`240473024248393728`
`20`		`4687531209011183616`
`21`		`95293672221284794368`

[1,3,10,36,144,648,3384,20520,145728,1181952, 10917504,111601152,1265777280,15544566144, 208320719616,2980582728192,46020833427456, 751100760576000,13121167636058112, 240473024248393728,4687531209011183616, 95293672221284794368]

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Last modified May 14 12:19 EDT 2024. Contains 372533 sequences. (Running on oeis4.)