A007657 - OEIS

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A007657 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`36`
`5`		`270`
`6`		`2520`
`7`		`28560`
`8`		`361200`
`9`		`5481000`
`10`		`88565400`
`11`		`1654052400`
`12`		`32885455680`
`13`		`721400359680`
`14`		`17024709461760`
`15`		`429108154675200`
`16`		`11721695953968000`
`17`		`333806974560259200`
`18`		`10358856500289897600`
`19`		`331148326165228091520`
`20`		`11429645706428485536000`
`21`		`407641141014720316704000`

[1,2,6,36,270,2520,28560,361200,5481000,88565400, 1654052400,32885455680,721400359680, 17024709461760,429108154675200,11721695953968000, 333806974560259200,10358856500289897600, 331148326165228091520,11429645706428485536000, 407641141014720316704000]

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Last modified April 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)