A081009 - OEIS

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

A081009 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`12`
`2`		`88`
`3`		`609`
`4`		`4180`
`5`		`28656`
`6`		`196417`
`7`		`1346268`
`8`		`9227464`
`9`		`63245985`
`10`		`433494436`
`11`		`2971215072`
`12`		`20365011073`
`13`		`139583862444`
`14`		`956722026040`
`15`		`6557470319841`
`16`		`44945570212852`
`17`		`308061521170128`
`18`		`2111485077978049`
`19`		`14472334024676220`
`20`		`99194853094755496`

[1,12,88,609,4180,28656,196417,1346268,9227464, 63245985,433494436,2971215072,20365011073, 139583862444,956722026040,6557470319841, 44945570212852,308061521170128,2111485077978049, 14472334024676220,99194853094755496]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)