A126480 as tables, graphs or sounds

A126480 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`12`
`2`		`72`
`3`		`448`
`4`		`2816`
`5`		`17780`
`6`		`112440`
`7`		`711504`
`8`		`4503320`
`9`		`28505304`
`10`		`180439880`
`11`		`1142206528`
`12`		`7230339936`
`13`		`45769222384`
`14`		`289726772704`
`15`		`1834018988272`
`16`		`11609648360160`
`17`		`73491027329888`
`18`		`465210573030272`
`19`		`2944861245639136`

[1,12,72,448,2816,17780,112440,711504,4503320, 28505304,180439880,1142206528,7230339936, 45769222384,289726772704,1834018988272, 11609648360160,73491027329888,465210573030272, 2944861245639136]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research