A000227 as tables, graphs or sounds

A000227 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`7`
`3`		`20`
`4`		`55`
`5`		`148`
`6`		`403`
`7`		`1097`
`8`		`2981`
`9`		`8103`
`10`		`22026`
`11`		`59874`
`12`		`162755`
`13`		`442413`
`14`		`1202604`
`15`		`3269017`
`16`		`8886111`
`17`		`24154953`
`18`		`65659969`
`19`		`178482301`
`20`		`485165195`
`21`		`1318815734`
`22`		`3584912846`
`23`		`9744803446`
`24`		`26489122130`
`25`		`72004899337`
`26`		`195729609429`
`27`		`532048240602`

[1,3,7,20,55,148,403,1097,2981,8103,22026,59874, 162755,442413,1202604,3269017,8886111,24154953, 65659969,178482301,485165195,1318815734, 3584912846,9744803446,26489122130,72004899337, 195729609429,532048240602]

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

AT&T Labs Research