A056311 - OEIS

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A056311 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`12`
`5`		`120`
`6`		`780`
`7`		`4212`
`8`		`20424`
`9`		`93360`
`10`		`409380`
`11`		`1749780`
`12`		`7338792`
`13`		`30394560`
`14`		`124705140`
`15`		`508291812`
`16`		`2061607224`
`17`		`8332140720`
`18`		`33585777060`
`19`		`135116412660`
`20`		`542785800072`
`21`		`2178110589600`
`22`		`8733345234900`

[0,0,0,12,120,780,4212,20424,93360,409380,1749780, 7338792,30394560,124705140,508291812,2061607224, 8332140720,33585777060,135116412660,542785800072, 2178110589600,8733345234900]

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)