A022553 as tables, graphs or sounds

A022553 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`8`
`5`		`25`
`6`		`75`
`7`		`245`
`8`		`800`
`9`		`2700`
`10`		`9225`
`11`		`32065`
`12`		`112632`
`13`		`400023`
`14`		`1432613`
`15`		`5170575`
`16`		`18783360`
`17`		`68635477`
`18`		`252085716`
`19`		`930138521`
`20`		`3446158600`
`21`		`12815663595`
`22`		`47820414961`
`23`		`178987624513`
`24`		`671825020128`
`25`		`2528212128750`
`26`		`9536894664375`

[1,1,1,3,8,25,75,245,800,2700,9225,32065,112632, 400023,1432613,5170575,18783360,68635477, 252085716,930138521,3446158600,12815663595, 47820414961,178987624513,671825020128, 2528212128750,9536894664375]

Last modified November 27 14:17 EST 2009. Contains 167569 sequences.

AT&T Labs Research