A071969 as tables, graphs or sounds

A071969 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`19`
`5`		`63`
`6`		`219`
`7`		`787`
`8`		`2897`
`9`		`10869`
`10`		`41414`
`11`		`159822`
`12`		`623391`
`13`		`2453727`
`14`		`9733866`
`15`		`38877318`
`16`		`156206233`
`17`		`630947421`
`18`		`2560537092`
`19`		`10435207116`
`20`		`42689715279`
`21`		`175243923783`
`22`		`721649457417`
`23`		`2980276087005`
`24`		`12340456995177`
`25`		`51222441676513`
`26`		`213090270498764`
`27`		`888321276659112`

[1,1,2,6,19,63,219,787,2897,10869,41414,159822, 623391,2453727,9733866,38877318,156206233, 630947421,2560537092,10435207116,42689715279, 175243923783,721649457417,2980276087005, 12340456995177,51222441676513,213090270498764, 888321276659112]

Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research