A208309 - OEIS

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A208309 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`18`
`3`		`78`
`4`		`336`
`5`		`1446`
`6`		`6222`
`7`		`26772`
`8`		`115194`
`9`		`495654`
`10`		`2132688`
`11`		`9176478`
`12`		`39484326`
`13`		`169892196`
`14`		`731008002`
`15`		`3145363422`
`16`		`13533793104`
`17`		`58232875254`
`18`		`250562996958`
`19`		`1078116359028`
`20`		`4638892804266`
`21`		`19960114944246`
`22`		`85883896308432`

[4,18,78,336,1446,6222,26772,115194,495654, 2132688,9176478,39484326,169892196,731008002, 3145363422,13533793104,58232875254,250562996958, 1078116359028,4638892804266,19960114944246, 85883896308432]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)