A291011 - OEIS

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A291011 as a simple table

`n`		`a(n)`
`0`		`4`
`1`		`15`
`2`		`52`
`3`		`172`
`4`		`552`
`5`		`1736`
`6`		`5384`
`7`		`16536`
`8`		`50440`
`9`		`153112`
`10`		`463176`
`11`		`1397720`
`12`		`4210568`
`13`		`12668568`
`14`		`38083528`
`15`		`114414424`
`16`		`343587336`
`17`		`1031482904`
`18`		`3095956040`
`19`		`9291013848`
`20`		`27879595144`
`21`		`83652416920`
`22`		`250985562312`
`23`		`753015407192`
`24`		`2259167856392`
`25`		`6777755227416`
`26`		`20333785775944`

[4,15,52,172,552,1736,5384,16536,50440,153112, 463176,1397720,4210568,12668568,38083528, 114414424,343587336,1031482904,3095956040, 9291013848,27879595144,83652416920,250985562312, 753015407192,2259167856392,6777755227416, 20333785775944]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)