A072688 - OEIS

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

A072688 as a simple table

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

[1,2,3,3,3,4,5,6,6,7,7,7,7,7,8,9,10,10,10,10,10, 10,11,11,11,11,12,13,13,13,13,13,14,14,14,14,15, 16,16,17,17,17,17,17,17,17,17,17,17,18,18,18,18, 18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19, 20]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 06:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)