A216957 - OEIS

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A216957 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`2`
`3`		`4`
`4`		`6`
`5`		`12`
`6`		`20`
`7`		`40`
`8`		`74`
`9`		`148`
`10`		`286`
`11`		`568`
`12`		`1118`
`13`		`2228`
`14`		`4412`
`15`		`8788`
`16`		`17480`
`17`		`34836`
`18`		`69392`
`19`		`138388`
`20`		`275942`
`21`		`550560`
`22`		`1098516`
`23`		`2192572`
`24`		`4376666`
`25`		`8738324`
`26`		`17448308`
`27`		`34845304`
`28`		`69594398`
`29`		`139011816`
`30`		`277691852`
`31`		`554767744`
`32`		`1108378658`
`33`		`2214594580`
`34`		`4425117884`
`35`		`8842583584`
`36`		`17670722600`
`37`		`35314182976`
`38`		`70576759892`
`39`		`141055781836`

[2,2,4,6,12,20,40,74,148,286,568,1118,2228,4412, 8788,17480,34836,69392,138388,275942,550560, 1098516,2192572,4376666,8738324,17448308,34845304, 69594398,139011816,277691852,554767744,1108378658, 2214594580,4425117884,8842583584,17670722600, 35314182976,70576759892,141055781836]

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Last modified April 24 16:56 EDT 2024. Contains 371962 sequences. (Running on oeis4.)