A131389 - OEIS

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A131389 as a simple table

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

[0,1,2,-1,3,4,-2,-3,6,-4,5,7,-5,8,-6,-7,9,10,-8, 11,-10,12,-9,-11,13,14,-13,-12,15,16,-14,-15,17, 18,-16,19,-17,20,-19,21,-18,22,-20,-21,24,-22,23, 25,-23,26,-25,27,-24,28,-26,-27,30,29,-31,32,-28, 31,-29,33,-30,34,-32,-33,35,36,-34]

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Last modified August 22 19:40 EDT 2024. Contains 375369 sequences. (Running on oeis4.)