A147990 - OEIS

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A147990 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`-1`
`4`		`1`
`5`		`-3`
`6`		`1`
`7`		`1`
`8`		`-7`
`9`		`13`
`10`		`-7`
`11`		`1`
`12`		`1`
`13`		`-15`
`14`		`83`
`15`		`-220`
`16`		`303`
`17`		`-220`
`18`		`83`
`19`		`-15`
`20`		`1`
`21`		`1`
`22`		`-31`
`23`		`413`
`24`		`-3141`
`25`		`15261`
`26`		`-50187`
`27`		`115410`
`28`		`-189036`
`29`		`222621`
`30`		`-189036`
`31`		`115410`
`32`		`-50187`
`33`		`15261`
`34`		`-3141`
`35`		`413`
`36`		`-31`
`37`		`1`
`38`		`1`
`39`		`-63`
`40`		`1839`
`41`		`-33150`
`42`		`414861`
`43`		`-3841195`
`44`		`27378213`
`45`		`-154299168`

[1,1,-1,1,-3,1,1,-7,13,-7,1,1,-15,83,-220,303, -220,83,-15,1,1,-31,413,-3141,15261,-50187,115410, -189036,222621,-189036,115410,-50187,15261,-3141, 413,-31,1,1,-63,1839,-33150,414861,-3841195, 27378213,-154299168]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)