A001473 as tables, graphs or sounds

A001473 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`6`
`5`		`30`
`6`		`180`
`7`		`840`
`8`		`5460`
`9`		`30996`
`10`		`209160`
`11`		`1290960`
`12`		`9753480`
`13`		`69618120`
`14`		`571627056`
`15`		`4443697440`
`16`		`40027718640`
`17`		`346953934320`
`18`		`3369416698080`
`19`		`31421601510336`
`20`		`328430320909920`
`21`		`3331475969159520`
`22`		`37124416523261760`

[0,0,0,6,30,180,840,5460,30996,209160,1290960, 9753480,69618120,571627056,4443697440,40027718640, 346953934320,3369416698080,31421601510336, 328430320909920,3331475969159520, 37124416523261760]

Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research