A018047 - OEIS

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A018047 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`9`
`3`		`24`
`4`		`70`
`5`		`200`
`6`		`576`
`7`		`1662`
`8`		`4793`
`9`		`13824`
`10`		`39876`
`11`		`115021`
`12`		`331776`
`13`		`957008`
`14`		`2760488`
`15`		`7962624`
`16`		`22968183`
`17`		`66251702`
`18`		`191102976`
`19`		`551236371`
`20`		`1590040836`
`21`		`4586471424`
`22`		`13229672881`
`23`		`38160980056`
`24`		`110075314176`
`25`		`317512149144`
`26`		`915863521340`
`27`		`2641807540224`
`28`		`7620291579446`

[1,3,9,24,70,200,576,1662,4793,13824,39876,115021, 331776,957008,2760488,7962624,22968183,66251702, 191102976,551236371,1590040836,4586471424, 13229672881,38160980056,110075314176,317512149144, 915863521340,2641807540224,7620291579446]

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Last modified May 13 01:02 EDT 2024. Contains 372497 sequences. (Running on oeis4.)