A120257 as tables, graphs or sounds

A120257 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`-1`
`3`		`3`
`4`		`-6`
`5`		`-1`
`6`		`4`
`7`		`-20`
`8`		`-20`
`9`		`1`
`10`		`5`
`11`		`-50`
`12`		`-175`
`13`		`70`
`14`		`1`
`15`		`6`
`16`		`-105`
`17`		`-980`
`18`		`1764`
`19`		`252`
`20`		`-1`
`21`		`7`
`22`		`-196`
`23`		`-4116`
`24`		`24696`
`25`		`19404`
`26`		`-924`
`27`		`-1`
`28`		`8`
`29`		`-336`
`30`		`-14112`
`31`		`232848`
`32`		`731808`
`33`		`-226512`
`34`		`-3432`
`35`		`1`
`36`		`9`
`37`		`-540`
`38`		`-41580`
`39`		`1646568`
`40`		`16818516`
`41`		`-24293412`
`42`		`-2760615`
`43`		`12870`
`44`		`1`
`45`		`10`
`46`		`-825`
`47`		`-108900`
`48`		`9343620`
`49`		`267227532`
`50`		`-1447482465`

[1,2,-1,3,-6,-1,4,-20,-20,1,5,-50,-175,70,1,6, -105,-980,1764,252,-1,7,-196,-4116,24696,19404, -924,-1,8,-336,-14112,232848,731808,-226512,-3432, 1,9,-540,-41580,1646568,16818516,-24293412, -2760615,12870,1,10,-825,-108900,9343620, 267227532,-1447482465]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research