A047991 - OEIS

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A047991 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`-1`
`3`		`1`
`4`		`1`
`5`		`-2`
`6`		`1`
`7`		`-2`
`8`		`-5`
`9`		`6`
`10`		`1`
`11`		`2`
`12`		`-13`
`13`		`-14`
`14`		`24`
`15`		`1`
`16`		`-3`
`17`		`-23`
`18`		`51`
`19`		`94`
`20`		`-120`
`21`		`1`
`22`		`3`
`23`		`-41`
`24`		`-87`
`25`		`400`
`26`		`444`
`27`		`-720`
`28`		`1`
`29`		`-4`
`30`		`-62`
`31`		`200`
`32`		`1009`
`33`		`-2356`
`34`		`-3828`
`35`		`5040`
`36`		`1`
`37`		`4`
`38`		`-94`
`39`		`-296`
`40`		`2609`
`41`		`5716`
`42`		`-22676`
`43`		`-25584`
`44`		`40320`
`45`		`1`
`46`		`-5`
`47`		`-130`
`48`		`550`
`49`		`5273`
`50`		`-17765`
`51`		`-74120`
`52`		`178500`
`53`		`270576`
`54`		`-362880`

[1,1,-1,1,1,-2,1,-2,-5,6,1,2,-13,-14,24,1,-3,-23, 51,94,-120,1,3,-41,-87,400,444,-720,1,-4,-62,200, 1009,-2356,-3828,5040,1,4,-94,-296,2609,5716, -22676,-25584,40320,1,-5,-130,550,5273,-17765, -74120,178500,270576,-362880]

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Last modified April 16 19:21 EDT 2024. Contains 371754 sequences. (Running on oeis4.)