A180491 - OEIS

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A180491 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`0`
`5`		`2`
`6`		`0`
`7`		`6`
`8`		`0`
`9`		`0`
`10`		`0`
`11`		`720`
`12`		`0`
`13`		`2160`
`14`		`0`
`15`		`0`
`16`		`0`
`17`		`2419200`
`18`		`0`
`19`		`65318400`
`20`		`0`
`21`		`0`
`22`		`0`
`23`		`754427520000`
`24`		`0`
`25`		`0`
`26`		`0`
`27`		`0`
`28`		`0`
`29`		`32953394073600000`
`30`		`0`
`31`		`311409573995520000`
`32`		`0`
`33`		`0`
`34`		`0`
`35`		`0`
`36`		`0`
`37`		`37269497815783833600000`
`38`		`0`
`39`		`0`
`40`		`0`
`41`		`7890485108998805913600000000`
`42`		`0`

[1,1,1,0,2,0,6,0,0,0,720,0,2160,0,0,0,2419200,0, 65318400,0,0,0,754427520000,0,0,0,0,0, 32953394073600000,0,311409573995520000,0,0,0,0,0, 37269497815783833600000,0,0,0, 7890485108998805913600000000,0]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)