A002409 as tables, graphs or sounds

A002409 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`14`
`2`		`112`
`3`		`672`
`4`		`3360`
`5`		`14784`
`6`		`59136`
`7`		`219648`
`8`		`768768`
`9`		`2562560`
`10`		`8200192`
`11`		`25346048`
`12`		`76038144`
`13`		`222265344`
`14`		`635043840`
`15`		`1778122752`
`16`		`4889837568`
`17`		`13231325184`
`18`		`35283533824`
`19`		`92851404800`
`20`		`241413652480`
`21`		`620777963520`
`22`		`1580162088960`

[1,14,112,672,3360,14784,59136,219648,768768, 2562560,8200192,25346048,76038144,222265344, 635043840,1778122752,4889837568,13231325184, 35283533824,92851404800,241413652480,620777963520, 1580162088960]

Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

AT&T Labs Research