A278572 - OEIS

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A278572 as a simple table

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

[1,1,1,2,1,3,1,3,-1,1,4,3,2,3,5,-1,5,1,4,7,-1,3,5, 6,3,7,9,-1,3,5,2,7,1,5,9,-1,3,7,-1,-1,1,3,9,13,2, 1,9,3,6,7,13,-1,10,13,7,2,9,11,15,-1,-1,4,8,14,-1]

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Last modified April 16 13:34 EDT 2024. Contains 371712 sequences. (Running on oeis4.)