A149815 as tables, graphs or sounds

A149815 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`10`
`4`		`26`
`5`		`76`
`6`		`248`
`7`		`796`
`8`		`2654`
`9`		`8942`
`10`		`30952`
`11`		`112110`
`12`		`403446`
`13`		`1474050`
`14`		`5415092`
`15`		`20126040`
`16`		`76723180`
`17`		`291325720`
`18`		`1115293334`
`19`		`4283685580`
`20`		`16561655330`
`21`		`65111198066`
`22`		`255211841296`
`23`		`1005521776936`
`24`		`3970064457452`
`25`		`15742010094734`
`26`		`63185813520174`
`27`		`252973809922464`
`28`		`1016451149145374`
`29`		`4089942429478792`

[1,2,4,10,26,76,248,796,2654,8942,30952,112110, 403446,1474050,5415092,20126040,76723180, 291325720,1115293334,4283685580,16561655330, 65111198066,255211841296,1005521776936, 3970064457452,15742010094734,63185813520174, 252973809922464,1016451149145374, 4089942429478792]

Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research