A216778 - OEIS

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A216778 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`3`
`5`		`20`
`6`		`130`
`7`		`924`
`8`		`7413`
`9`		`66744`
`10`		`667476`
`11`		`7342280`
`12`		`88107415`
`13`		`1145396460`
`14`		`16035550518`
`15`		`240533257860`
`16`		`3848532125865`
`17`		`65425046139824`
`18`		`1177650830516968`
`19`		`22375365779822544`
`20`		`447507315596451051`
`21`		`9397653627525472260`
`22`		`206748379805560389930`
`23`		`4755212735527888968620`

[1,0,0,0,3,20,130,924,7413,66744,667476,7342280, 88107415,1145396460,16035550518,240533257860, 3848532125865,65425046139824,1177650830516968, 22375365779822544,447507315596451051, 9397653627525472260,206748379805560389930, 4755212735527888968620]

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Last modified June 6 23:38 EDT 2024. Contains 373136 sequences. (Running on oeis4.)