A000253 as tables, graphs or sounds

A000253 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`4`
`3`		`11`
`4`		`27`
`5`		`63`
`6`		`142`
`7`		`312`
`8`		`673`
`9`		`1432`
`10`		`3015`
`11`		`6295`
`12`		`13055`
`13`		`26926`
`14`		`55284`
`15`		`113081`
`16`		`230572`
`17`		`468883`
`18`		`951347`
`19`		`1926527`
`20`		`3894878`
`21`		`7863152`
`22`		`15855105`
`23`		`31936240`
`24`		`64269135`
`25`		`129234351`
`26`		`259690239`
`27`		`521524126`
`28`		`1046810092`

[0,1,4,11,27,63,142,312,673,1432,3015,6295,13055, 26926,55284,113081,230572,468883,951347,1926527, 3894878,7863152,15855105,31936240,64269135, 129234351,259690239,521524126,1046810092]

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

AT&T Labs Research