A213577 - OEIS

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

A213577 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`17`
`4`		`56`
`5`		`172`
`6`		`498`
`7`		`1395`
`8`		`3820`
`9`		`10307`
`10`		`27534`
`11`		`73064`
`12`		`193012`
`13`		`508341`
`14`		`1336132`
`15`		`3507189`
`16`		`9197732`
`17`		`24107124`
`18`		`63159782`
`19`		`165433895`
`20`		`433246860`
`21`		`1134484871`
`22`		`2970509594`
`23`		`7777554192`
`24`		`20363014056`
`25`		`53312938537`
`26`		`139578241348`

[1,4,17,56,172,498,1395,3820,10307,27534,73064, 193012,508341,1336132,3507189,9197732,24107124, 63159782,165433895,433246860,1134484871, 2970509594,7777554192,20363014056,53312938537, 139578241348]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)