A183893 - OEIS

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A183893 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`-1`
`3`		`-1`
`4`		`9`
`5`		`9`
`6`		`-73`
`7`		`-73`
`8`		`697`
`9`		`697`
`10`		`-7161`
`11`		`-7161`
`12`		`77457`
`13`		`77457`
`14`		`-868881`
`15`		`-868881`
`16`		`10016241`
`17`		`10016241`
`18`		`-117935473`
`19`		`-117935473`
`20`		`1412307481`
`21`		`1412307481`
`22`		`-17148100569`
`23`		`-17148100569`
`24`		`210619695913`
`25`		`210619695913`
`26`		`-2612194773481`
`27`		`-2612194773481`
`28`		`32668519882017`
`29`		`32668519882017`
`30`		`-411515480555553`

[1,1,-1,-1,9,9,-73,-73,697,697,-7161,-7161,77457, 77457,-868881,-868881,10016241,10016241, -117935473,-117935473,1412307481,1412307481, -17148100569,-17148100569,210619695913, 210619695913,-2612194773481,-2612194773481, 32668519882017,32668519882017,-411515480555553]

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Last modified January 22 13:47 EST 2021. Contains 340362 sequences. (Running on oeis4.)