A084847 - OEIS

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A084847 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`18`
`3`		`86`
`4`		`418`
`5`		`2022`
`6`		`9650`
`7`		`45334`
`8`		`209730`
`9`		`956870`
`10`		`4312402`
`11`		`19228662`
`12`		`84948962`
`13`		`372287398`
`14`		`1620178674`
`15`		`7008019670`
`16`		`30150864514`
`17`		`129107299206`
`18`		`550530654866`
`19`		`2338786731958`
`20`		`9902578218786`
`21`		`41802362561894`
`22`		`175984622563378`

[1,4,18,86,418,2022,9650,45334,209730,956870, 4312402,19228662,84948962,372287398,1620178674, 7008019670,30150864514,129107299206,550530654866, 2338786731958,9902578218786,41802362561894, 175984622563378]

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Last modified April 18 09:31 EDT 2024. Contains 371771 sequences. (Running on oeis4.)