A004247 - OEIS

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

A004247 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`1`
`5`		`0`
`6`		`0`
`7`		`2`
`8`		`2`
`9`		`0`
`10`		`0`
`11`		`3`
`12`		`4`
`13`		`3`
`14`		`0`
`15`		`0`
`16`		`4`
`17`		`6`
`18`		`6`
`19`		`4`
`20`		`0`
`21`		`0`
`22`		`5`
`23`		`8`
`24`		`9`
`25`		`8`
`26`		`5`
`27`		`0`
`28`		`0`
`29`		`6`
`30`		`10`
`31`		`12`
`32`		`12`
`33`		`10`
`34`		`6`
`35`		`0`
`36`		`0`
`37`		`7`
`38`		`12`
`39`		`15`
`40`		`16`
`41`		`15`
`42`		`12`
`43`		`7`
`44`		`0`
`45`		`0`
`46`		`8`
`47`		`14`
`48`		`18`
`49`		`20`
`50`		`20`
`51`		`18`
`52`		`14`
`53`		`8`
`54`		`0`
`55`		`0`
`56`		`9`
`57`		`16`
`58`		`21`
`59`		`24`
`60`		`25`
`61`		`24`
`62`		`21`
`63`		`16`
`64`		`9`
`65`		`0`
`66`		`0`
`67`		`10`
`68`		`18`
`69`		`24`
`70`		`28`
`71`		`30`
`72`		`30`
`73`		`28`
`74`		`24`
`75`		`18`
`76`		`10`
`77`		`0`
`78`		`0`
`79`		`11`
`80`		`20`
`81`		`27`
`82`		`32`
`83`		`35`
`84`		`36`
`85`		`35`
`86`		`32`
`87`		`27`
`88`		`20`
`89`		`11`
`90`		`0`
`91`		`0`
`92`		`12`
`93`		`22`
`94`		`30`
`95`		`36`
`96`		`40`
`97`		`42`
`98`		`42`
`99`		`40`
`100`		`36`
`101`		`30`

[0,0,0,0,1,0,0,2,2,0,0,3,4,3,0,0,4,6,6,4,0,0,5,8, 9,8,5,0,0,6,10,12,12,10,6,0,0,7,12,15,16,15,12,7, 0,0,8,14,18,20,20,18,14,8,0,0,9,16,21,24,25,24,21, 16,9,0,0,10,18,24,28,30,30,28,24,18,10,0,0,11,20, 27,32,35,36,35,32,27,20,11,0,0,12,22,30,36,40,42, 42,40,36,30]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 2 07:06 EDT 2024. Contains 372178 sequences. (Running on oeis4.)