A309214 - OEIS

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A309214 as a simple table

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

[0,1,-1,-4,0,5,-1,-8,0,9,-1,-12,0,13,-1,-16,0,17, -1,-20,0,21,-1,-24,0,25,-1,-28,0,29,-1,-32,0,33, -1,-36,0,37,-1,-40,0,41,-1,-44,0,45,-1,-48,0,49, -1,-52,0,53,-1,-56,0,57,-1,-60,0,61,-1,-64,0,65, -1,-68,0,69,-1,-72,0,73,-1]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)