A001698 as tables, graphs or sounds

A001698 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`7`
`3`		`16`
`4`		`40`
`5`		`99`
`6`		`249`
`7`		`622`
`8`		`1559`
`9`		`3907`
`10`		`9793`
`11`		`24547`
`12`		`61529`
`13`		`154231`
`14`		`386598`
`15`		`969057`
`16`		`2429064`
`17`		`6088761`
`18`		`15262259`
`19`		`38256810`
`20`		`95895601`
`21`		`240374624`
`22`		`602529829`
`23`		`1510318306`
`24`		`3785806568`
`25`		`9489609785`
`26`		`23786924201`
`27`		`59624976769`
`28`		`149457652642`

[1,3,7,16,40,99,249,622,1559,3907,9793,24547, 61529,154231,386598,969057,2429064,6088761, 15262259,38256810,95895601,240374624,602529829, 1510318306,3785806568,9489609785,23786924201, 59624976769,149457652642]

Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

AT&T Labs Research