A156588 - OEIS

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A156588 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`-1`
`5`		`2`
`6`		`1`
`7`		`-1`
`8`		`2`
`9`		`6`
`10`		`1`
`11`		`-1`
`12`		`3`
`13`		`-12`
`14`		`24`
`15`		`1`
`16`		`-1`
`17`		`4`
`18`		`-36`
`19`		`288`
`20`		`120`
`21`		`1`
`22`		`-1`
`23`		`5`
`24`		`-80`
`25`		`2160`
`26`		`-34560`
`27`		`720`
`28`		`1`
`29`		`-1`
`30`		`6`
`31`		`-150`
`32`		`9600`
`33`		`-777600`
`34`		`24883200`
`35`		`5040`
`36`		`1`
`37`		`-1`
`38`		`7`
`39`		`-252`
`40`		`31500`
`41`		`-8064000`
`42`		`1959552000`
`43`		`-125411328000`
`44`		`40320`
`45`		`1`
`46`		`-1`
`47`		`8`
`48`		`-392`
`49`		`84672`
`50`		`-52920000`

[1,1,1,1,-1,2,1,-1,2,6,1,-1,3,-12,24,1,-1,4,-36, 288,120,1,-1,5,-80,2160,-34560,720,1,-1,6,-150, 9600,-777600,24883200,5040,1,-1,7,-252,31500, -8064000,1959552000,-125411328000,40320,1,-1,8, -392,84672,-52920000]

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Last modified April 19 03:30 EDT 2024. Contains 371782 sequences. (Running on oeis4.)