A107421 - OEIS

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A107421 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`70`
`2`		`1540`
`3`		`18480`
`4`		`150150`
`5`		`924924`
`6`		`4624620`
`7`		`19631040`
`8`		`73002930`
`9`		`243343100`
`10`		`739763024`
`11`		`2078672960`
`12`		`5456516520`
`13`		`13495999440`
`14`		`31674284400`
`15`		`70950397056`
`16`		`152432493675`
`17`		`315413948850`
`18`		`630827897700`
`19`		`1223211990000`
`20`		`2305754601150`
`21`		`4235059471500`
`22`		`7595106655500`

[1,70,1540,18480,150150,924924,4624620,19631040, 73002930,243343100,739763024,2078672960, 5456516520,13495999440,31674284400,70950397056, 152432493675,315413948850,630827897700, 1223211990000,2305754601150,4235059471500, 7595106655500]

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Last modified May 20 08:05 EDT 2024. Contains 372703 sequences. (Running on oeis4.)