A016421 - OEIS

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A016421 as a simple table

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

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

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Last modified August 22 22:00 EDT 2024. Contains 375369 sequences. (Running on oeis4.)