A152880 - OEIS

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

A152880 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`8`
`5`		`23`
`6`		`71`
`7`		`229`
`8`		`759`
`9`		`2566`
`10`		`8817`
`11`		`30717`
`12`		`108278`
`13`		`385509`
`14`		`1384262`
`15`		`5006925`
`16`		`18225400`
`17`		`66711769`
`18`		`245400354`
`19`		`906711758`
`20`		`3363516354`
`21`		`12522302087`
`22`		`46773419089`
`23`		`175232388955`
`24`		`658295899526`
`25`		`2479268126762`
`26`		`9359152696924`
`27`		`35406650450001`
`28`		`134215036793130`

[1,1,3,8,23,71,229,759,2566,8817,30717,108278, 385509,1384262,5006925,18225400,66711769, 245400354,906711758,3363516354,12522302087, 46773419089,175232388955,658295899526, 2479268126762,9359152696924,35406650450001, 134215036793130]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 11:24 EDT 2024. Contains 371967 sequences. (Running on oeis4.)