A104531 as tables, graphs or sounds

A104531 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`24`
`3`		`148`
`4`		`920`
`5`		`5736`
`6`		`35808`
`7`		`223668`
`8`		`1397496`
`9`		`8732920`
`10`		`54575888`
`11`		`341082504`
`12`		`2131706864`
`13`		`13322959888`
`14`		`83267756400`
`15`		`520420803060`
`16`		`3252620324280`
`17`		`20328841669080`
`18`		`127055130786960`
`19`		`794094089779800`
`20`		`4963086293860560`

[1,4,24,148,920,5736,35808,223668,1397496,8732920, 54575888,341082504,2131706864,13322959888, 83267756400,520420803060,3252620324280, 20328841669080,127055130786960,794094089779800, 4963086293860560]

Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research