A000580 as tables, graphs or sounds

A000580 formatted as a simple table:

`n`		`a(n)`
`7`		`1`
`8`		`8`
`9`		`36`
`10`		`120`
`11`		`330`
`12`		`792`
`13`		`1716`
`14`		`3432`
`15`		`6435`
`16`		`11440`
`17`		`19448`
`18`		`31824`
`19`		`50388`
`20`		`77520`
`21`		`116280`
`22`		`170544`
`23`		`245157`
`24`		`346104`
`25`		`480700`
`26`		`657800`
`27`		`888030`
`28`		`1184040`
`29`		`1560780`
`30`		`2035800`
`31`		`2629575`
`32`		`3365856`
`33`		`4272048`
`34`		`5379616`
`35`		`6724520`
`36`		`8347680`
`37`		`10295472`

[1,8,36,120,330,792,1716,3432,6435,11440,19448, 31824,50388,77520,116280,170544,245157,346104, 480700,657800,888030,1184040,1560780,2035800, 2629575,3365856,4272048,5379616,6724520,8347680, 10295472]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research