A012418 as tables, graphs or sounds

A012418 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`6`
`4`		`21`
`5`		`100`
`6`		`1005`
`7`		`9170`
`8`		`73353`
`9`		`794952`
`10`		`11042745`
`11`		`144625118`
`12`		`1936131549`
`13`		`31475441452`
`14`		`562265168101`
`15`		`9960214270890`
`16`		`187956163443857`
`17`		`3970728871687824`
`18`		`88040662078595313`
`19`		`1994667867977462454`

[1,0,1,6,21,100,1005,9170,73353,794952,11042745, 144625118,1936131549,31475441452,562265168101, 9960214270890,187956163443857,3970728871687824, 88040662078595313,1994667867977462454]

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research