A138354 as tables, graphs or sounds

A138354 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`3`
`3`		`1`
`4`		`21`
`5`		`26`
`6`		`215`
`7`		`498`
`8`		`2821`
`9`		`9040`
`10`		`43695`
`11`		`165375`
`12`		`752785`
`13`		`3101970`
`14`		`13881803`
`15`		`59837183`
`16`		`267860685`
`17`		`1184749704`
`18`		`5337504263`
`19`		`23996776941`
`20`		`108964583121`
`21`		`495544446410`
`22`		`2267450194443`
`23`		`10402298479276`
`24`		`47926692348121`

[1,0,3,1,21,26,215,498,2821,9040,43695,165375, 752785,3101970,13881803,59837183,267860685, 1184749704,5337504263,23996776941,108964583121, 495544446410,2267450194443,10402298479276, 47926692348121]

Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research