A007963 - OEIS

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

A007963 as a simple table

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

[0,0,0,0,1,1,2,2,3,3,4,4,5,6,7,6,8,7,9,10,10,10, 11,12,12,14,16,14,16,16,16,18,20,20,20,21,21,21, 27,24,25,28,27,28,33,29,32,35,34,30,37,36,34,42, 38,36,46,42,42,50,46,47,53,50,45,56,54,46,62,53, 48,64,59,55,68,61,59,68]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 18:00 EDT 2024. Contains 371797 sequences. (Running on oeis4.)