A020990 - OEIS

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A020990 as a simple table

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

[1,0,1,2,3,2,1,0,1,0,1,2,1,2,3,4,5,4,5,6,7,6,5,4, 3,4,3,2,3,2,1,0,1,0,1,2,3,2,1,0,1,0,1,2,1,2,3,4,3, 4,3,2,1,2,3,4,5,4,5,6,5,6,7,8,9,8,9,10,11,10,9,8, 9,8,9,10,9,10,11]

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Last modified May 6 13:11 EDT 2024. Contains 372293 sequences. (Running on oeis4.)