A000913 as tables, graphs or sounds

A000913 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`2`
`4`		`12`
`5`		`38`
`6`		`143`
`7`		`490`
`8`		`1768`
`9`		`6268`
`10`		`22610`
`11`		`81620`
`12`		`297160`
`13`		`1086172`
`14`		`3991995`
`15`		`14731290`
`16`		`54587280`
`17`		`202992808`
`18`		`757398510`
`19`		`2834493948`
`20`		`10637507400`
`21`		`40023577524`
`22`		`150946230006`
`23`		`570534370692`
`24`		`2160865067312`
`25`		`8199710635816`

[0,1,2,12,38,143,490,1768,6268,22610,81620,297160, 1086172,3991995,14731290,54587280,202992808, 757398510,2834493948,10637507400,40023577524, 150946230006,570534370692,2160865067312, 8199710635816]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research