A140505 - OEIS

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A140505 as a simple table

`n`		`a(n)`
`0`		`2`
`1`		`-1`
`2`		`4`
`3`		`0`
`4`		`12`
`5`		`4`
`6`		`44`
`7`		`20`
`8`		`172`
`9`		`84`
`10`		`684`
`11`		`340`
`12`		`2732`
`13`		`1364`
`14`		`10924`
`15`		`5460`
`16`		`43692`
`17`		`21844`
`18`		`174764`
`19`		`87380`
`20`		`699052`
`21`		`349524`
`22`		`2796204`
`23`		`1398100`
`24`		`11184812`
`25`		`5592404`
`26`		`44739244`
`27`		`22369620`
`28`		`178956972`
`29`		`89478484`
`30`		`715827884`
`31`		`357913940`
`32`		`2863311532`
`33`		`1431655764`
`34`		`11453246124`

[2,-1,4,0,12,4,44,20,172,84,684,340,2732,1364, 10924,5460,43692,21844,174764,87380,699052,349524, 2796204,1398100,11184812,5592404,44739244, 22369620,178956972,89478484,715827884,357913940, 2863311532,1431655764,11453246124]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)