A089580 as tables, graphs or sounds

A089580 formatted as a simple table:

`n`		`a(n)`
`1`		`3`
`2`		`15`
`3`		`49`
`4`		`143`
`5`		`406`
`6`		`1174`
`7`		`3507`
`8`		`10674`
`9`		`32965`
`10`		`102716`
`11`		`321797`
`12`		`1011533`
`13`		`3186389`
`14`		`10050743`
`15`		`31730134`
`16`		`100228040`
`17`		`316713623`
`18`		`1001037546`
`19`		`3164497349`
`20`		`10004755374`
`21`		`31632975598`
`22`		`100021893194`
`23`		`316274794666`
`24`		`1000101078148`

[3,15,49,143,406,1174,3507,10674,32965,102716, 321797,1011533,3186389,10050743,31730134, 100228040,316713623,1001037546,3164497349, 10004755374,31632975598,100021893194,316274794666, 1000101078148]

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

AT&T Labs Research