A278573 - OEIS

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A278573 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`1`
`6`		`3`
`7`		`2`
`8`		`3`
`9`		`1`
`10`		`3`
`11`		`5`
`12`		`1`
`13`		`3`
`14`		`4`
`15`		`6`
`16`		`-1`
`17`		`1`
`18`		`4`
`19`		`5`
`20`		`8`
`21`		`3`
`22`		`7`
`23`		`2`
`24`		`9`
`25`		`3`
`26`		`5`
`27`		`7`
`28`		`9`
`29`		`-1`
`30`		`5`
`31`		`9`
`32`		`1`
`33`		`4`
`34`		`7`
`35`		`8`
`36`		`11`
`37`		`14`
`38`		`-1`
`39`		`3`
`40`		`5`
`41`		`6`
`42`		`11`
`43`		`12`
`44`		`14`
`45`		`3`
`46`		`7`
`47`		`9`
`48`		`11`
`49`		`15`
`50`		`-1`
`51`		`3`
`52`		`5`
`53`		`15`
`54`		`17`
`55`		`2`
`56`		`7`
`57`		`14`
`58`		`19`
`59`		`1`
`60`		`21`
`61`		`5`
`62`		`9`
`63`		`14`
`64`		`18`
`65`		`-1`
`66`		`3`
`67`		`7`
`68`		`18`
`69`		`22`
`70`		`-1`
`71`		`-1`
`72`		`1`
`73`		`3`
`74`		`9`
`75`		`13`
`76`		`15`
`77`		`19`
`78`		`25`
`79`		`27`
`80`		`2`
`81`		`27`
`82`		`1`
`83`		`9`
`84`		`21`
`85`		`29`
`86`		`3`
`87`		`6`
`88`		`7`
`89`		`13`

[1,1,2,1,3,2,3,1,3,5,1,3,4,6,-1,1,4,5,8,3,7,2,9,3, 5,7,9,-1,5,9,1,4,7,8,11,14,-1,3,5,6,11,12,14,3,7, 9,11,15,-1,3,5,15,17,2,7,14,19,1,21,5,9,14,18,-1, 3,7,18,22,-1,-1,1,3,9,13,15,19,25,27,2,27,1,9,21, 29,3,6,7,13]

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Last modified July 15 16:36 EDT 2024. Contains 374333 sequences. (Running on oeis4.)