A171803 - OEIS

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

A171803 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`9`
`3`		`48`
`4`		`286`
`5`		`1818`
`6`		`12086`
`7`		`82992`
`8`		`584079`
`9`		`4190738`
`10`		`30539814`
`11`		`225426240`
`12`		`1681904909`
`13`		`12663614266`
`14`		`96099303213`
`15`		`734250983952`
`16`		`5643749482600`
`17`		`43610375803722`
`18`		`338578974873523`
`19`		`2639771240159904`
`20`		`20659895819582337`

[1,2,9,48,286,1818,12086,82992,584079,4190738, 30539814,225426240,1681904909,12663614266, 96099303213,734250983952,5643749482600, 43610375803722,338578974873523,2639771240159904, 20659895819582337]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)