A018840 - OEIS

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

A018840 as a simple table

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

[0,5,4,5,2,5,2,5,4,5,4,7,4,5,6,7,6,7,6,7,8,9,8,9, 8,9,10,11,10,11,10,11,12,13,12,13,12,13,14,15,14, 15,14,15,16,17,16,17,16,17,18,19,18,19,18,19,20, 21,20,21,20,21,22,23,22,23,22,23,24,25,24,25,24, 25,26,27,26,27,26,27]

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 30 19:17 EDT 2024. Contains 375545 sequences. (Running on oeis4.)