A011881 - OEIS

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A011881 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`0`
`6`		`1`
`7`		`1`
`8`		`2`
`9`		`2`
`10`		`3`
`11`		`3`
`12`		`4`
`13`		`5`
`14`		`6`
`15`		`7`
`16`		`8`
`17`		`9`
`18`		`10`
`19`		`12`
`20`		`13`
`21`		`15`
`22`		`16`
`23`		`18`
`24`		`19`
`25`		`21`
`26`		`23`
`27`		`25`
`28`		`27`
`29`		`29`
`30`		`31`
`31`		`33`
`32`		`35`
`33`		`37`
`34`		`40`
`35`		`42`
`36`		`45`
`37`		`47`
`38`		`50`
`39`		`52`
`40`		`55`
`41`		`58`
`42`		`61`
`43`		`64`
`44`		`67`
`45`		`70`
`46`		`73`
`47`		`77`
`48`		`80`
`49`		`84`
`50`		`87`
`51`		`91`
`52`		`94`
`53`		`98`
`54`		`102`
`55`		`106`
`56`		`110`
`57`		`114`
`58`		`118`

[0,0,0,0,0,0,1,1,2,2,3,3,4,5,6,7,8,9,10,12,13,15, 16,18,19,21,23,25,27,29,31,33,35,37,40,42,45,47, 50,52,55,58,61,64,67,70,73,77,80,84,87,91,94,98, 102,106,110,114,118]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)