A091983 as tables, graphs or sounds

A091983 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`20`
`2`		`180`
`3`		`560`
`4`		`1460`
`5`		`2520`
`6`		`5040`
`7`		`6880`
`8`		`11700`
`9`		`15140`
`10`		`22680`
`11`		`26640`
`12`		`40880`
`13`		`43960`
`14`		`61920`
`15`		`70560`
`16`		`93620`
`17`		`98280`
`18`		`136260`
`19`		`137200`
`20`		`183960`
`21`		`192640`
`22`		`239760`
`23`		`243360`
`24`		`327600`
`25`		`315020`
`26`		`395640`
`27`		`408800`
`28`		`502240`
`29`		`487800`
`30`		`635040`
`31`		`595840`
`32`		`748980`
`33`		`745920`

[1,20,180,560,1460,2520,5040,6880,11700,15140, 22680,26640,40880,43960,61920,70560,93620,98280, 136260,137200,183960,192640,239760,243360,327600, 315020,395640,408800,502240,487800,635040,595840, 748980,745920]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research