A015131 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A015131 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`0`
`3`		`-1`
`4`		`-1`
`5`		`0`
`6`		`1`
`7`		`1`
`8`		`0`
`9`		`-1`
`10`		`-1`
`11`		`-1`
`12`		`0`
`13`		`1`
`14`		`1`
`15`		`0`
`16`		`-1`
`17`		`-2`
`18`		`-1`
`19`		`1`
`20`		`2`
`21`		`1`
`22`		`0`
`23`		`-1`
`24`		`-1`
`25`		`0`
`26`		`1`
`27`		`1`
`28`		`1`
`29`		`0`
`30`		`-1`
`31`		`-1`
`32`		`0`
`33`		`1`
`34`		`2`
`35`		`1`
`36`		`-1`
`37`		`-2`
`38`		`-1`
`39`		`0`
`40`		`1`
`41`		`1`
`42`		`0`
`43`		`-1`
`44`		`-1`
`45`		`-1`
`46`		`0`
`47`		`1`
`48`		`1`
`49`		`0`
`50`		`-1`
`51`		`-1`
`52`		`0`
`53`		`1`
`54`		`1`
`55`		`0`
`56`		`0`
`57`		`0`
`58`		`0`
`59`		`0`
`60`		`0`
`61`		`0`
`62`		`0`
`63`		`0`
`64`		`0`
`65`		`0`
`66`		`0`
`67`		`0`
`68`		`0`
`69`		`0`
`70`		`0`
`71`		`0`
`72`		`0`
`73`		`0`
`74`		`0`
`75`		`0`
`76`		`0`
`77`		`0`
`78`		`0`
`79`		`0`
`80`		`0`

[1,1,0,-1,-1,0,1,1,0,-1,-1,-1,0,1,1,0,-1,-2,-1,1, 2,1,0,-1,-1,0,1,1,1,0,-1,-1,0,1,2,1,-1,-2,-1,0,1, 1,0,-1,-1,-1,0,1,1,0,-1,-1,0,1,1,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 8 13:24 EDT 2024. Contains 372333 sequences. (Running on oeis4.)