A026712 as tables, graphs or sounds

A026712 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`8`
`3`		`20`
`4`		`47`
`5`		`111`
`6`		`252`
`7`		`582`
`8`		`1303`
`9`		`2977`
`10`		`6618`
`11`		`15028`
`12`		`33269`
`13`		`75255`
`14`		`166152`
`15`		`374860`
`16`		`826115`
`17`		`1860407`
`18`		`4094612`
`19`		`9208832`
`20`		`20248703`
`21`		`45495079`
`22`		`99965896`
`23`		`224440544`
`24`		`492900919`
`25`		`1106034259`
`26`		`2428024608`
`27`		`5446009600`
`28`		`11951707547`

[1,3,8,20,47,111,252,582,1303,2977,6618,15028, 33269,75255,166152,374860,826115,1860407,4094612, 9208832,20248703,45495079,99965896,224440544, 492900919,1106034259,2428024608,5446009600, 11951707547]

Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research