A081193 - OEIS

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

A081193 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`9`
`2`		`46`
`3`		`204`
`4`		`856`
`5`		`3504`
`6`		`14176`
`7`		`57024`
`8`		`228736`
`9`		`916224`
`10`		`3667456`
`11`		`14674944`
`12`		`58710016`
`13`		`234860544`
`14`		`939483136`
`15`		`3758014464`
`16`		`15032221696`
`17`		`60129214464`
`18`		`240517513216`
`19`		`962071363584`
`20`		`3848288075776`
`21`		`15393157545984`
`22`		`61572640669696`

[1,9,46,204,856,3504,14176,57024,228736,916224, 3667456,14674944,58710016,234860544,939483136, 3758014464,15032221696,60129214464,240517513216, 962071363584,3848288075776,15393157545984, 61572640669696]

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 30 12:56 EST 2023. Contains 359945 sequences. (Running on oeis4.)