A000387 - OEIS

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A000387 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`1`
`3`		`0`
`4`		`6`
`5`		`20`
`6`		`135`
`7`		`924`
`8`		`7420`
`9`		`66744`
`10`		`667485`
`11`		`7342280`
`12`		`88107426`
`13`		`1145396460`
`14`		`16035550531`
`15`		`240533257860`
`16`		`3848532125880`
`17`		`65425046139824`
`18`		`1177650830516985`
`19`		`22375365779822544`
`20`		`447507315596451070`
`21`		`9397653627525472260`
`22`		`206748379805560389951`

[0,0,1,0,6,20,135,924,7420,66744,667485,7342280, 88107426,1145396460,16035550531,240533257860, 3848532125880,65425046139824,1177650830516985, 22375365779822544,447507315596451070, 9397653627525472260,206748379805560389951]

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Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)