A104156 - OEIS

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A104156 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`-1`
`4`		`1`
`5`		`2`
`6`		`2`
`7`		`1`
`8`		`-1`
`9`		`2`
`10`		`4`
`11`		`5`
`12`		`5`
`13`		`4`
`14`		`2`
`15`		`-1`
`16`		`3`
`17`		`6`
`18`		`8`
`19`		`9`
`20`		`9`
`21`		`8`
`22`		`6`
`23`		`3`
`24`		`-1`
`25`		`4`
`26`		`8`
`27`		`11`
`28`		`13`
`29`		`14`
`30`		`14`
`31`		`13`
`32`		`11`
`33`		`8`
`34`		`4`
`35`		`-1`
`36`		`5`
`37`		`10`
`38`		`14`
`39`		`17`
`40`		`19`
`41`		`20`
`42`		`20`
`43`		`19`
`44`		`17`
`45`		`14`
`46`		`10`
`47`		`5`
`48`		`-1`
`49`		`6`
`50`		`12`
`51`		`17`
`52`		`21`
`53`		`24`
`54`		`26`
`55`		`27`
`56`		`27`
`57`		`26`
`58`		`24`
`59`		`21`
`60`		`17`
`61`		`12`
`62`		`6`
`63`		`-1`
`64`		`7`
`65`		`14`
`66`		`20`
`67`		`25`
`68`		`29`
`69`		`32`
`70`		`34`
`71`		`35`
`72`		`35`
`73`		`34`
`74`		`32`
`75`		`29`
`76`		`25`
`77`		`20`
`78`		`14`
`79`		`7`
`80`		`-1`
`81`		`8`
`82`		`16`
`83`		`23`
`84`		`29`
`85`		`34`
`86`		`38`
`87`		`41`
`88`		`43`
`89`		`44`
`90`		`44`
`91`		`43`
`92`		`41`
`93`		`38`
`94`		`34`
`95`		`29`
`96`		`23`

[0,0,-1,1,2,2,1,-1,2,4,5,5,4,2,-1,3,6,8,9,9,8,6,3, -1,4,8,11,13,14,14,13,11,8,4,-1,5,10,14,17,19,20, 20,19,17,14,10,5,-1,6,12,17,21,24,26,27,27,26,24, 21,17,12,6,-1,7,14,20,25,29,32,34,35,35,34,32,29, 25,20,14,7,-1,8,16,23,29,34,38,41,43,44,44,43,41, 38,34,29,23]

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Last modified April 16 08:27 EDT 2024. Contains 371698 sequences. (Running on oeis4.)