A155119 as tables, graphs or sounds

A155119 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`24`
`3`		`140`
`4`		`820`
`5`		`4800`
`6`		`28100`
`7`		`164500`
`8`		`963000`
`9`		`5637500`
`10`		`33002500`
`11`		`193200000`
`12`		`1131012500`
`13`		`6621062500`
`14`		`38760375000`
`15`		`226907187500`
`16`		`1328337812500`
`17`		`7776225000000`
`18`		`45522814062500`
`19`		`266495195312500`
`20`		`1540090046875000`

[1,4,24,140,820,4800,28100,164500,963000,5637500, 33002500,193200000,1131012500,6621062500, 38760375000,226907187500,1328337812500, 7776225000000,45522814062500,266495195312500, 1540090046875000]

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

AT&T Labs Research