A181972 - OEIS

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A181972 as a simple table

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

[0,0,0,1,1,2,2,3,3,4,4,6,6,7,7,9,9,10,10,12,12,13, 13,16,16,17,17,19,19,21,21,23,23,24,24,27,27,28, 28,31,31,33,33,35,35,36,36,40,40,41,41,43,43,45, 45,48,48,49,49,53,53,54,54,57,57,59,59,61,61,63, 63,67]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)