A018012 as tables, graphs or sounds

A018012 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`5`
`3`		`13`
`4`		`30`
`5`		`71`
`6`		`169`
`7`		`397`
`8`		`934`
`9`		`2197`
`10`		`5165`
`11`		`12146`
`12`		`28561`
`13`		`67156`
`14`		`157907`
`15`		`371293`
`16`		`873034`
`17`		`2052795`
`18`		`4826809`
`19`		`11349443`
`20`		`26686340`
`21`		`62748517`
`22`		`147542764`
`23`		`346922420`
`24`		`815730721`
`25`		`1918055940`
`26`		`4509991465`

[1,2,5,13,30,71,169,397,934,2197,5165,12146,28561, 67156,157907,371293,873034,2052795,4826809, 11349443,26686340,62748517,147542764,346922420, 815730721,1918055940,4509991465]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research