A006989 as tables, graphs or sounds

A006989 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`2`
`3`		`4`
`4`		`34`
`5`		`196`
`6`		`1826`
`7`		`17172`
`8`		`199074`
`9`		`2510116`
`10`		`35862562`
`11`		`559572916`
`12`		`9577862306`
`13`		`177417693636`
`14`		`3546104002338`
`15`		`75961485384532`
`16`		`1737273637523362`
`17`		`42235881659123812`
`18`		`1087865420946370082`
`19`		`29589907884231535860`

[1,0,2,4,34,196,1826,17172,199074,2510116, 35862562,559572916,9577862306,177417693636, 3546104002338,75961485384532,1737273637523362, 42235881659123812,1087865420946370082, 29589907884231535860]

Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

AT&T Labs Research