A047145 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A047145 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`5`
`5`		`19`
`6`		`68`
`7`		`250`
`8`		`935`
`9`		`3473`
`10`		`12850`
`11`		`48066`
`12`		`181540`
`13`		`686960`
`14`		`2600830`
`15`		`9893064`
`16`		`37819055`
`17`		`144917337`
`18`		`556011134`
`19`		`2138565128`
`20`		`8248348136`
`21`		`31873293528`
`22`		`123320614254`
`23`		`477883163716`
`24`		`1855021589250`
`25`		`7210702449848`
`26`		`28058894828756`

[1,5,19,68,250,935,3473,12850,48066,181540,686960, 2600830,9893064,37819055,144917337,556011134, 2138565128,8248348136,31873293528,123320614254, 477883163716,1855021589250,7210702449848, 28058894828756]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)