A166741 - OEIS

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

A166741 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`10`
`4`		`32`
`5`		`130`
`6`		`640`
`7`		`3770`
`8`		`25600`
`9`		`199810`
`10`		`1740800`
`11`		`16983850`
`12`		`181043200`
`13`		`2122981250`
`14`		`26794393600`
`15`		`367275756250`
`16`		`5358878720000`
`17`		`84106148181250`
`18`		`1393308467200000`
`19`		`24643101417106250`
`20`		`457005177241600000`

[1,2,4,10,32,130,640,3770,25600,199810,1740800, 16983850,181043200,2122981250,26794393600, 367275756250,5358878720000,84106148181250, 1393308467200000,24643101417106250, 457005177241600000]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 8 07:09 EDT 2024. Contains 372319 sequences. (Running on oeis4.)