A071954 as tables, graphs or sounds

A071954 formatted as a simple table:

`n`		`a(n)`
`0`		`2`
`1`		`4`
`2`		`10`
`3`		`32`
`4`		`114`
`5`		`420`
`6`		`1562`
`7`		`5824`
`8`		`21730`
`9`		`81092`
`10`		`302634`
`11`		`1129440`
`12`		`4215122`
`13`		`15731044`
`14`		`58709050`
`15`		`219105152`
`16`		`817711554`
`17`		`3051741060`
`18`		`11389252682`
`19`		`42505269664`
`20`		`158631825970`
`21`		`592022034212`
`22`		`2209456310874`
`23`		`8245803209280`

[2,4,10,32,114,420,1562,5824,21730,81092,302634, 1129440,4215122,15731044,58709050,219105152, 817711554,3051741060,11389252682,42505269664, 158631825970,592022034212,2209456310874, 8245803209280]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research