A002804 as tables, graphs or sounds

A002804 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`9`
`4`		`19`
`5`		`37`
`6`		`73`
`7`		`143`
`8`		`279`
`9`		`548`
`10`		`1079`
`11`		`2132`
`12`		`4223`
`13`		`8384`
`14`		`16673`
`15`		`33203`
`16`		`66190`
`17`		`132055`
`18`		`263619`
`19`		`526502`
`20`		`1051899`
`21`		`2102137`
`22`		`4201783`
`23`		`8399828`
`24`		`16794048`
`25`		`33579681`
`26`		`67146738`
`27`		`134274541`
`28`		`268520676`
`29`		`536998744`
`30`		`1073933573`
`31`		`2147771272`

[1,4,9,19,37,73,143,279,548,1079,2132,4223,8384, 16673,33203,66190,132055,263619,526502,1051899, 2102137,4201783,8399828,16794048,33579681, 67146738,134274541,268520676,536998744,1073933573, 2147771272]

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

AT&T Labs Research