A023013 - OEIS

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A023013 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`15`
`2`		`135`
`3`		`920`
`4`		`5220`
`5`		`25893`
`6`		`115700`
`7`		`475065`
`8`		`1817910`
`9`		`6551390`
`10`		`22414314`
`11`		`73265580`
`12`		`229972855`
`13`		`696109950`
`14`		`2039031360`
`15`		`5796944357`
`16`		`16036186005`
`17`		`43259046975`
`18`		`114012183695`
`19`		`294067720380`
`20`		`743368453326`
`21`		`1844121021245`
`22`		`4494803760045`

[1,15,135,920,5220,25893,115700,475065,1817910, 6551390,22414314,73265580,229972855,696109950, 2039031360,5796944357,16036186005,43259046975, 114012183695,294067720380,743368453326, 1844121021245,4494803760045]

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Last modified April 18 09:17 EDT 2024. Contains 371769 sequences. (Running on oeis4.)