A000155 as tables, graphs or sounds

A000155 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`2`
`3`		`7`
`4`		`44`
`5`		`361`
`6`		`3654`
`7`		`44207`
`8`		`622552`
`9`		`10005041`
`10`		`180713290`
`11`		`3624270839`
`12`		`79914671748`
`13`		`1921576392793`
`14`		`50040900884366`
`15`		`1403066801155039`
`16`		`42142044935535536`
`17`		`1349948504738292193`
`18`		`45940391206037470098`

[0,1,2,7,44,361,3654,44207,622552,10005041, 180713290,3624270839,79914671748,1921576392793, 50040900884366,1403066801155039,42142044935535536, 1349948504738292193,45940391206037470098]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research