A022728 - OEIS

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A022728 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`18`
`3`		`64`
`4`		`219`
`5`		`676`
`6`		`2030`
`7`		`5736`
`8`		`15793`
`9`		`41864`
`10`		`108430`
`11`		`273240`
`12`		`675526`
`13`		`1634780`
`14`		`3891960`
`15`		`9108872`
`16`		`21018870`
`17`		`47815572`
`18`		`107446898`
`19`		`238524144`
`20`		`523812125`
`21`		`1138233100`
`22`		`2449710880`
`23`		`5223395480`
`24`		`11042278208`

[1,4,18,64,219,676,2030,5736,15793,41864,108430, 273240,675526,1634780,3891960,9108872,21018870, 47815572,107446898,238524144,523812125,1138233100, 2449710880,5223395480,11042278208]

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Last modified May 9 10:59 EDT 2024. Contains 372350 sequences. (Running on oeis4.)