A022585 as tables, graphs or sounds

A022585 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`20`
`2`		`210`
`3`		`1560`
`4`		`9255`
`5`		`46724`
`6`		`208510`
`7`		`843320`
`8`		`3145855`
`9`		`10963160`
`10`		`36042250`
`11`		`112633760`
`12`		`336622160`
`13`		`966897820`
`14`		`2680139300`
`15`		`7193849624`
`16`		`18752326235`
`17`		`47590579080`
`18`		`117840608100`
`19`		`285228791880`
`20`		`675978772326`

[1,20,210,1560,9255,46724,208510,843320,3145855, 10963160,36042250,112633760,336622160,966897820, 2680139300,7193849624,18752326235,47590579080, 117840608100,285228791880,675978772326]

Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research