A141540 - OEIS

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A141540 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`4`
`6`		`1`
`7`		`1`
`8`		`6`
`9`		`6`
`10`		`1`
`11`		`1`
`12`		`8`
`13`		`12`
`14`		`8`
`15`		`1`
`16`		`1`
`17`		`10`
`18`		`20`
`19`		`20`
`20`		`10`
`21`		`1`
`22`		`1`
`23`		`12`
`24`		`30`
`25`		`40`
`26`		`30`
`27`		`12`
`28`		`1`
`29`		`1`
`30`		`14`
`31`		`42`
`32`		`70`
`33`		`70`
`34`		`42`
`35`		`14`
`36`		`1`
`37`		`1`
`38`		`16`
`39`		`56`
`40`		`112`
`41`		`140`
`42`		`112`
`43`		`56`
`44`		`16`
`45`		`1`
`46`		`1`
`47`		`18`
`48`		`72`
`49`		`168`
`50`		`252`
`51`		`252`
`52`		`168`
`53`		`72`
`54`		`18`
`55`		`1`
`56`		`1`
`57`		`20`
`58`		`90`
`59`		`240`
`60`		`420`
`61`		`504`
`62`		`420`
`63`		`240`
`64`		`90`
`65`		`20`
`66`		`1`

[1,1,1,1,4,1,1,6,6,1,1,8,12,8,1,1,10,20,20,10,1,1, 12,30,40,30,12,1,1,14,42,70,70,42,14,1,1,16,56, 112,140,112,56,16,1,1,18,72,168,252,252,168,72,18, 1,1,20,90,240,420,504,420,240,90,20,1]

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Last modified May 6 18:59 EDT 2024. Contains 372297 sequences. (Running on oeis4.)