A085881 - OEIS

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A085881 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`6`
`5`		`3`
`6`		`15`
`7`		`45`
`8`		`45`
`9`		`15`
`10`		`105`
`11`		`420`
`12`		`630`
`13`		`420`
`14`		`105`
`15`		`945`
`16`		`4725`
`17`		`9450`
`18`		`9450`
`19`		`4725`
`20`		`945`
`21`		`10395`
`22`		`62370`
`23`		`155925`
`24`		`207900`
`25`		`155925`
`26`		`62370`
`27`		`10395`
`28`		`135135`
`29`		`945945`
`30`		`2837835`
`31`		`4729725`
`32`		`4729725`
`33`		`2837835`
`34`		`945945`
`35`		`135135`
`36`		`2027025`
`37`		`16216200`
`38`		`56756700`
`39`		`113513400`
`40`		`141891750`
`41`		`113513400`
`42`		`56756700`
`43`		`16216200`
`44`		`2027025`

[1,1,1,3,6,3,15,45,45,15,105,420,630,420,105,945, 4725,9450,9450,4725,945,10395,62370,155925,207900, 155925,62370,10395,135135,945945,2837835,4729725, 4729725,2837835,945945,135135,2027025,16216200, 56756700,113513400,141891750,113513400,56756700, 16216200,2027025]

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Last modified April 16 09:52 EDT 2024. Contains 371698 sequences. (Running on oeis4.)