A074427 - OEIS

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A074427 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`6`
`4`		`18`
`5`		`60`
`6`		`240`
`7`		`1008`
`8`		`4908`
`9`		`28080`
`10`		`165840`
`11`		`940896`
`12`		`5174688`
`13`		`28304640`
`14`		`155696585`
`15`		`865095552`
`16`		`4861712448`
`17`		`27554100480`
`18`		`156752183808`
`19`		`892662156288`
`20`		`5087657135000`
`21`		`29043991855542`
`22`		`166186204664832`
`23`		`953309368018944`
`24`		`5481528861090816`
`25`		`31581437286776820`

[0,1,6,18,60,240,1008,4908,28080,165840,940896, 5174688,28304640,155696585,865095552,4861712448, 27554100480,156752183808,892662156288, 5087657135000,29043991855542,166186204664832, 953309368018944,5481528861090816, 31581437286776820]

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Last modified September 1 05:33 EDT 2024. Contains 375575 sequences. (Running on oeis4.)