A073517 as tables, graphs or sounds

A073517 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`4`
`2`		`25`
`3`		`160`
`4`		`1193`
`5`		`9585`
`6`		`80020`
`7`		`686048`
`8`		`6003530`
`9`		`53378283`
`10`		`480532488`
`11`		`4369582734`
`12`		`40063566855`
`13`		`369893939287`
`14`		`3435376839800`
`15`		`32069022099022`
`16`		`300694113015105`
`17`		`2830466318006780`
`18`		`26735673312004455`
`19`		`253315661161665338`

[0,4,25,160,1193,9585,80020,686048,6003530, 53378283,480532488,4369582734,40063566855, 369893939287,3435376839800,32069022099022, 300694113015105,2830466318006780, 26735673312004455,253315661161665338]

Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research