A003449 - OEIS

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

A003449 as a simple table

`n`		`a(n)`
`4`		`1`
`5`		`1`
`6`		`3`
`7`		`7`
`8`		`24`
`9`		`74`
`10`		`259`
`11`		`891`
`12`		`3176`
`13`		`11326`
`14`		`40942`
`15`		`148646`
`16`		`543515`
`17`		`1996212`
`18`		`7367075`
`19`		`27294355`
`20`		`101501266`
`21`		`378701686`
`22`		`1417263770`
`23`		`5318762098`
`24`		`20011847548`
`25`		`75473144396`
`26`		`285267393358`
`27`		`1080432637662`
`28`		`4099856060808`
`29`		`15585106611244`
`30`		`59343290815356`

[1,1,3,7,24,74,259,891,3176,11326,40942,148646, 543515,1996212,7367075,27294355,101501266, 378701686,1417263770,5318762098,20011847548, 75473144396,285267393358,1080432637662, 4099856060808,15585106611244,59343290815356]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 16 12:05 EDT 2024. Contains 371711 sequences. (Running on oeis4.)