A115509 - OEIS

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A115509 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`0`
`5`		`0`
`6`		`2`
`7`		`4`
`8`		`0`
`9`		`0`
`10`		`0`
`11`		`0`
`12`		`432`
`13`		`1968`
`14`		`24960`
`15`		`161280`
`16`		`0`
`17`		`0`
`18`		`0`
`19`		`0`
`20`		`0`
`21`		`0`
`22`		`0`
`23`		`0`
`24`		`24492908160`
`25`		`314562424320`
`26`		`6409032860160`
`27`		`87275109519360`
`28`		`546113470694400`
`29`		`5633855851438080`
`30`		`119328558793113600`
`31`		`1461417642226483200`
`32`		`0`
`33`		`0`
`34`		`0`
`35`		`0`
`36`		`0`
`37`		`0`
`38`		`0`
`39`		`0`
`40`		`0`
`41`		`0`
`42`		`0`
`43`		`0`
`44`		`0`
`45`		`0`
`46`		`0`
`47`		`0`

[1,1,2,0,0,2,4,0,0,0,0,432,1968,24960,161280,0,0, 0,0,0,0,0,0,24492908160,314562424320, 6409032860160,87275109519360,546113470694400, 5633855851438080,119328558793113600, 1461417642226483200,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0]

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Last modified April 17 21:00 EDT 2024. Contains 371767 sequences. (Running on oeis4.)