A027012 - OEIS

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

A027012 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`6`
`3`		`47`
`4`		`199`
`5`		`661`
`6`		`1954`
`7`		`5442`
`8`		`14696`
`9`		`39065`
`10`		`103025`
`11`		`270655`
`12`		`709716`
`13`		`1859412`
`14`		`4869594`
`15`		`12750611`
`16`		`33383659`
`17`		`87401977`
`18`		`228824086`
`19`		`599072310`
`20`		`1568395100`
`21`		`4106115485`
`22`		`10749954101`
`23`		`28143749827`
`24`		`73681298664`
`25`		`192900149736`
`26`		`505019154414`
`27`		`1322157317687`

[1,6,47,199,661,1954,5442,14696,39065,103025, 270655,709716,1859412,4869594,12750611,33383659, 87401977,228824086,599072310,1568395100, 4106115485,10749954101,28143749827,73681298664, 192900149736,505019154414,1322157317687]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 16:03 EDT 2024. Contains 371794 sequences. (Running on oeis4.)