A055270 as tables, graphs or sounds

A055270 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`5`
`2`		`36`
`3`		`252`
`4`		`1764`
`5`		`12348`
`6`		`86436`
`7`		`605052`
`8`		`4235364`
`9`		`29647548`
`10`		`207532836`
`11`		`1452729852`
`12`		`10169108964`
`13`		`71183762748`
`14`		`498286339236`
`15`		`3488004374652`
`16`		`24416030622564`
`17`		`170912214357948`
`18`		`1196385500505636`
`19`		`8374698503539452`

[1,5,36,252,1764,12348,86436,605052,4235364, 29647548,207532836,1452729852,10169108964, 71183762748,498286339236,3488004374652, 24416030622564,170912214357948,1196385500505636, 8374698503539452]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research