A137501 as tables, graphs or sounds

A137501 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`2`
`3`		`-2`
`4`		`4`
`5`		`-4`
`6`		`6`
`7`		`-6`
`8`		`8`
`9`		`-8`
`10`		`10`
`11`		`-10`
`12`		`12`
`13`		`-12`
`14`		`14`
`15`		`-14`
`16`		`16`
`17`		`-16`
`18`		`18`
`19`		`-18`
`20`		`20`
`21`		`-20`
`22`		`22`
`23`		`-22`
`24`		`24`
`25`		`-24`
`26`		`26`
`27`		`-26`
`28`		`28`
`29`		`-28`
`30`		`30`
`31`		`-30`
`32`		`32`
`33`		`-32`
`34`		`34`
`35`		`-34`
`36`		`36`
`37`		`-36`
`38`		`38`
`39`		`-38`
`40`		`40`
`41`		`-40`
`42`		`42`
`43`		`-42`
`44`		`44`
`45`		`-44`
`46`		`46`
`47`		`-46`
`48`		`48`
`49`		`-48`
`50`		`50`
`51`		`-50`
`52`		`52`
`53`		`-52`
`54`		`54`
`55`		`-54`
`56`		`56`
`57`		`-56`
`58`		`58`
`59`		`-58`
`60`		`60`
`61`		`-60`
`62`		`62`
`63`		`-62`
`64`		`64`
`65`		`-64`
`66`		`66`
`67`		`-66`
`68`		`68`
`69`		`-68`
`70`		`70`
`71`		`-70`
`72`		`72`
`73`		`-72`
`74`		`74`

[0,0,2,-2,4,-4,6,-6,8,-8,10,-10,12,-12,14,-14,16, -16,18,-18,20,-20,22,-22,24,-24,26,-26,28,-28,30, -30,32,-32,34,-34,36,-36,38,-38,40,-40,42,-42,44, -44,46,-46,48,-48,50,-50,52,-52,54,-54,56,-56,58, -58,60,-60,62,-62,64,-64,66,-66,68,-68,70,-70,72, -72,74]

Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

AT&T Labs Research