A271917 - OEIS

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A271917 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`1`
`6`		`0`
`7`		`0`
`8`		`2`
`9`		`2`
`10`		`0`
`11`		`0`
`12`		`3`
`13`		`6`
`14`		`3`
`15`		`0`
`16`		`0`
`17`		`4`
`18`		`10`
`19`		`10`
`20`		`4`
`21`		`0`
`22`		`0`
`23`		`5`
`24`		`14`
`25`		`20`
`26`		`14`
`27`		`5`
`28`		`0`
`29`		`0`
`30`		`6`
`31`		`18`
`32`		`30`
`33`		`30`
`34`		`18`
`35`		`6`
`36`		`0`
`37`		`0`
`38`		`7`
`39`		`22`
`40`		`40`
`41`		`50`
`42`		`40`
`43`		`22`
`44`		`7`
`45`		`0`
`46`		`0`
`47`		`8`
`48`		`26`
`49`		`50`
`50`		`70`
`51`		`70`
`52`		`50`
`53`		`26`
`54`		`8`
`55`		`0`
`56`		`0`
`57`		`9`
`58`		`30`
`59`		`60`
`60`		`90`
`61`		`105`
`62`		`90`
`63`		`60`
`64`		`30`
`65`		`9`
`66`		`0`
`67`		`0`
`68`		`10`
`69`		`34`
`70`		`70`
`71`		`110`
`72`		`140`
`73`		`140`
`74`		`110`
`75`		`70`
`76`		`34`
`77`		`10`
`78`		`0`

[0,0,0,0,1,0,0,2,2,0,0,3,6,3,0,0,4,10,10,4,0,0,5, 14,20,14,5,0,0,6,18,30,30,18,6,0,0,7,22,40,50,40, 22,7,0,0,8,26,50,70,70,50,26,8,0,0,9,30,60,90,105, 90,60,30,9,0,0,10,34,70,110,140,140,110,70,34,10, 0]

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Last modified June 13 02:32 EDT 2024. Contains 373366 sequences. (Running on oeis4.)