A081068 as tables, graphs or sounds

A081068 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`25`
`3`		`169`
`4`		`1156`
`5`		`7921`
`6`		`54289`
`7`		`372100`
`8`		`2550409`
`9`		`17480761`
`10`		`119814916`
`11`		`821223649`
`12`		`5628750625`
`13`		`38580030724`
`14`		`264431464441`
`15`		`1812440220361`
`16`		`12422650078084`
`17`		`85146110326225`
`18`		`583600122205489`
`19`		`4000054745112196`
`20`		`27416783093579881`

[1,4,25,169,1156,7921,54289,372100,2550409, 17480761,119814916,821223649,5628750625, 38580030724,264431464441,1812440220361, 12422650078084,85146110326225,583600122205489, 4000054745112196,27416783093579881]

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

AT&T Labs Research