A001754 - OEIS

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A001754 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`1`
`4`		`12`
`5`		`120`
`6`		`1200`
`7`		`12600`
`8`		`141120`
`9`		`1693440`
`10`		`21772800`
`11`		`299376000`
`12`		`4390848000`
`13`		`68497228800`
`14`		`1133317785600`
`15`		`19833061248000`
`16`		`366148823040000`
`17`		`7113748561920000`
`18`		`145120470663168000`
`19`		`3101950060425216000`
`20`		`69337707233034240000`
`21`		`1617879835437465600000`

[0,0,1,12,120,1200,12600,141120,1693440,21772800, 299376000,4390848000,68497228800,1133317785600, 19833061248000,366148823040000,7113748561920000, 145120470663168000,3101950060425216000, 69337707233034240000,1617879835437465600000]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)