A087438 - OEIS

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A087438 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`15`
`3`		`56`
`4`		`212`
`5`		`816`
`6`		`3184`
`7`		`12544`
`8`		`49728`
`9`		`197888`
`10`		`789248`
`11`		`3151872`
`12`		`12596224`
`13`		`50360320`
`14`		`201388032`
`15`		`805437440`
`16`		`3221504000`
`17`		`12885491712`
`18`		`51540852736`
`19`		`206161051648`
`20`		`824639225856`
`21`		`3298546417664`
`22`		`13194163650560`
`23`		`52776608464896`

[1,4,15,56,212,816,3184,12544,49728,197888,789248, 3151872,12596224,50360320,201388032,805437440, 3221504000,12885491712,51540852736,206161051648, 824639225856,3298546417664,13194163650560, 52776608464896]

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Last modified April 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)