A297220 - OEIS

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A297220 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`16`
`3`		`57`
`4`		`207`
`5`		`751`
`6`		`2720`
`7`		`9861`
`8`		`35741`
`9`		`129540`
`10`		`469528`
`11`		`1701805`
`12`		`6168220`
`13`		`22356839`
`14`		`81032722`
`15`		`293704534`
`16`		`1064537220`
`17`		`3858433620`
`18`		`13984959985`
`19`		`50688731051`
`20`		`183722188635`
`21`		`665904273716`
`22`		`2413581640617`
`23`		`8748068704189`
`24`		`31707527421628`

[4,16,57,207,751,2720,9861,35741,129540,469528, 1701805,6168220,22356839,81032722,293704534, 1064537220,3858433620,13984959985,50688731051, 183722188635,665904273716,2413581640617, 8748068704189,31707527421628]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)