A027941 as tables, graphs or sounds

A027941 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`4`
`3`		`12`
`4`		`33`
`5`		`88`
`6`		`232`
`7`		`609`
`8`		`1596`
`9`		`4180`
`10`		`10945`
`11`		`28656`
`12`		`75024`
`13`		`196417`
`14`		`514228`
`15`		`1346268`
`16`		`3524577`
`17`		`9227464`
`18`		`24157816`
`19`		`63245985`
`20`		`165580140`
`21`		`433494436`
`22`		`1134903169`
`23`		`2971215072`
`24`		`7778742048`
`25`		`20365011073`
`26`		`53316291172`
`27`		`139583862444`

[0,1,4,12,33,88,232,609,1596,4180,10945,28656, 75024,196417,514228,1346268,3524577,9227464, 24157816,63245985,165580140,433494436,1134903169, 2971215072,7778742048,20365011073,53316291172, 139583862444]

Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research