A072279 - OEIS

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A072279 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`6`
`3`		`16`
`4`		`45`
`5`		`144`
`6`		`440`
`7`		`1440`
`8`		`4680`
`9`		`15600`
`10`		`52344`
`11`		`177840`
`12`		`608160`
`13`		`2095920`
`14`		`7262640`
`15`		`25300032`
`16`		`88517520`
`17`		`310927680`
`18`		`1095923400`
`19`		`3874804560`
`20`		`13737892896`
`21`		`48829153920`
`22`		`173949483240`
`23`		`620963048160`
`24`		`2220904271040`
`25`		`7956987570576`
`26`		`28553731537320`
`27`		`102617166646800`

[1,4,6,16,45,144,440,1440,4680,15600,52344,177840, 608160,2095920,7262640,25300032,88517520, 310927680,1095923400,3874804560,13737892896, 48829153920,173949483240,620963048160, 2220904271040,7956987570576,28553731537320, 102617166646800]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)