A156589 - OEIS

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A156589 as a simple table

`n`		`a(n)`
`0`		`-1`
`1`		`1`
`2`		`11`
`3`		`55`
`4`		`239`
`5`		`991`
`6`		`4031`
`7`		`16255`
`8`		`65279`
`9`		`261631`
`10`		`1047551`
`11`		`4192255`
`12`		`16773119`
`13`		`67100671`
`14`		`268419071`
`15`		`1073709055`
`16`		`4294901759`
`17`		`17179738111`
`18`		`68719214591`
`19`		`274877382655`
`20`		`1099510579199`
`21`		`4398044413951`
`22`		`17592181850111`
`23`		`70368735789055`

[-1,1,11,55,239,991,4031,16255,65279,261631, 1047551,4192255,16773119,67100671,268419071, 1073709055,4294901759,17179738111,68719214591, 274877382655,1099510579199,4398044413951, 17592181850111,70368735789055]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)