A004146 as tables, graphs or sounds

A004146 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`5`
`3`		`16`
`4`		`45`
`5`		`121`
`6`		`320`
`7`		`841`
`8`		`2205`
`9`		`5776`
`10`		`15125`
`11`		`39601`
`12`		`103680`
`13`		`271441`
`14`		`710645`
`15`		`1860496`
`16`		`4870845`
`17`		`12752041`
`18`		`33385280`
`19`		`87403801`
`20`		`228826125`
`21`		`599074576`
`22`		`1568397605`
`23`		`4106118241`
`24`		`10749957120`
`25`		`28143753121`
`26`		`73681302245`

[0,1,5,16,45,121,320,841,2205,5776,15125,39601, 103680,271441,710645,1860496,4870845,12752041, 33385280,87403801,228826125,599074576,1568397605, 4106118241,10749957120,28143753121,73681302245]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research