A001261 - OEIS

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A001261 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`0`
`6`		`1`
`7`		`6`
`8`		`63`
`9`		`616`
`10`		`6678`
`11`		`77868`
`12`		`978978`
`13`		`13216104`
`14`		`190899423`
`15`		`2939850914`
`16`		`48106651593`
`17`		`833848627248`
`18`		`15265844099324`
`19`		`294412707629208`
`20`		`5966764207952724`
`21`		`126793739418994416`
`22`		`2819296088257641741`
`23`		`65470320271760790078`

[0,0,0,0,0,1,6,63,616,6678,77868,978978,13216104, 190899423,2939850914,48106651593,833848627248, 15265844099324,294412707629208,5966764207952724, 126793739418994416,2819296088257641741, 65470320271760790078]

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Last modified May 22 06:48 EDT 2024. Contains 372743 sequences. (Running on oeis4.)