A002754 - OEIS

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A002754 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`4`
`3`		`44`
`4`		`408`
`5`		`3688`
`6`		`33212`
`7`		`298932`
`8`		`2690416`
`9`		`24213776`
`10`		`217924020`
`11`		`1961316220`
`12`		`17651846024`
`13`		`158866614264`
`14`		`1429799528428`
`15`		`12868195755908`
`16`		`115813761803232`
`17`		`1042323856229152`
`18`		`9380914706062436`
`19`		`84428232354561996`
`20`		`759854091191058040`

[0,0,4,44,408,3688,33212,298932,2690416,24213776, 217924020,1961316220,17651846024,158866614264, 1429799528428,12868195755908,115813761803232, 1042323856229152,9380914706062436, 84428232354561996,759854091191058040]

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)