A221915 - OEIS

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A221915 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`1`
`4`		`6`
`5`		`3`
`6`		`1`
`7`		`24`
`8`		`12`
`9`		`4`
`10`		`2`
`11`		`1`
`12`		`120`
`13`		`60`
`14`		`20`
`15`		`10`
`16`		`6`
`17`		`5`
`18`		`3`
`19`		`1`
`20`		`720`
`21`		`360`
`22`		`120`
`23`		`60`
`24`		`36`
`25`		`24`
`26`		`30`
`27`		`18`
`28`		`12`
`29`		`6`
`30`		`4`
`31`		`2`
`32`		`1`
`33`		`5040`
`34`		`2520`
`35`		`840`
`36`		`420`
`37`		`252`
`38`		`168`
`39`		`120`
`40`		`210`
`41`		`126`
`42`		`84`
`43`		`60`
`44`		`42`
`45`		`28`
`46`		`20`
`47`		`14`
`48`		`10`
`49`		`6`
`50`		`7`
`51`		`5`
`52`		`3`
`53`		`1`
`54`		`40320`
`55`		`20160`
`56`		`6720`
`57`		`3360`
`58`		`2016`
`59`		`1344`
`60`		`960`
`61`		`720`
`62`		`1680`
`63`		`1008`
`64`		`672`
`65`		`480`
`66`		`360`
`67`		`336`
`68`		`224`
`69`		`160`
`70`		`120`
`71`		`112`
`72`		`80`
`73`		`60`
`74`		`48`
`75`		`36`
`76`		`24`
`77`		`56`
`78`		`40`
`79`		`30`
`80`		`24`
`81`		`18`
`82`		`12`
`83`		`8`
`84`		`6`
`85`		`4`
`86`		`2`
`87`		`1`

[1,1,2,1,6,3,1,24,12,4,2,1,120,60,20,10,6,5,3,1, 720,360,120,60,36,24,30,18,12,6,4,2,1,5040,2520, 840,420,252,168,120,210,126,84,60,42,28,20,14,10, 6,7,5,3,1,40320,20160,6720,3360,2016,1344,960,720, 1680,1008,672,480,360,336,224,160,120,112,80,60, 48,36,24,56,40,30,24,18,12,8,6,4,2,1]

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Last modified July 31 23:10 EDT 2024. Contains 374809 sequences. (Running on oeis4.)