A003615 - OEIS

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

A003615 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`10`
`5`		`17`
`6`		`38`
`7`		`106`
`8`		`253`
`9`		`716`
`10`		`1903`
`11`		`5053`
`12`		`13786`
`13`		`39293`
`14`		`107641`
`15`		`302807`
`16`		`860099`
`17`		`2450684`
`18`		`7038472`
`19`		`20316895`
`20`		`58849665`
`21`		`171217429`
`22`		`499926666`
`23`		`1464276207`
`24`		`4301706250`
`25`		`12671810107`
`26`		`37419912977`
`27`		`110759884262`
`28`		`328525197554`

[1,1,3,10,17,38,106,253,716,1903,5053,13786,39293, 107641,302807,860099,2450684,7038472,20316895, 58849665,171217429,499926666,1464276207, 4301706250,12671810107,37419912977,110759884262, 328525197554]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)