A215287 - OEIS

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A215287 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`10`
`4`		`30`
`5`		`140`
`6`		`420`
`7`		`2310`
`8`		`6930`
`9`		`42042`
`10`		`126126`
`11`		`816816`
`12`		`2450448`
`13`		`16628040`
`14`		`49884120`
`15`		`350574510`
`16`		`1051723530`
`17`		`7595781050`
`18`		`22787343150`
`19`		`168212023980`
`20`		`504636071940`
`21`		`3792416540640`
`22`		`11377249621920`
`23`		`86787993910800`
`24`		`260363981732400`
`25`		`2011383287449200`

[1,3,10,30,140,420,2310,6930,42042,126126,816816, 2450448,16628040,49884120,350574510,1051723530, 7595781050,22787343150,168212023980,504636071940, 3792416540640,11377249621920,86787993910800, 260363981732400,2011383287449200]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)