A020063 as tables, graphs or sounds

A020063 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`2`
`6`		`14`
`7`		`91`
`8`		`648`
`9`		`5252`
`10`		`47801`
`11`		`482796`
`12`		`5359035`
`13`		`64844332`
`14`		`849460756`
`15`		`11977396665`
`16`		`180858689641`
`17`		`2911824903229`
`18`		`49792205845228`
`19`		`901238925798638`
`20`		`17213663482753993`
`21`		`345994636003355264`
`22`		`7300486819670796087`

[1,0,0,0,0,2,14,91,648,5252,47801,482796,5359035, 64844332,849460756,11977396665,180858689641, 2911824903229,49792205845228,901238925798638, 17213663482753993,345994636003355264, 7300486819670796087]

Last modified December 17 13:29 EST 2009. Contains 170826 sequences.

AT&T Labs Research