A056269 as tables, graphs or sounds

A056269 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`24`
`5`		`240`
`6`		`1560`
`7`		`8400`
`8`		`40800`
`9`		`186480`
`10`		`818280`
`11`		`3498000`
`12`		`14674440`
`13`		`60780720`
`14`		`249393480`
`15`		`1016542560`
`16`		`4123132800`
`17`		`16664094960`
`18`		`67171179600`
`19`		`270232006800`
`20`		`1085569963080`
`21`		`4356217672800`
`22`		`17466683473800`

[0,0,0,24,240,1560,8400,40800,186480,818280, 3498000,14674440,60780720,249393480,1016542560, 4123132800,16664094960,67171179600,270232006800, 1085569963080,4356217672800,17466683473800]

Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

AT&T Labs Research