A005506 - OEIS

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A005506 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`7`
`3`		`19`
`4`		`57`
`5`		`176`
`6`		`557`
`7`		`1806`
`8`		`5954`
`9`		`19897`
`10`		`67235`
`11`		`229366`
`12`		`788688`
`13`		`2730810`
`14`		`9512107`
`15`		`33309444`
`16`		`117190184`
`17`		`414039578`
`18`		`1468349782`
`19`		`5225201321`
`20`		`18651958885`
`21`		`66769742002`
`22`		`239643164237`
`23`		`862168692562`
`24`		`3108716586702`
`25`		`11232127258416`
`26`		`40660388117380`
`27`		`147453014455094`

[1,3,7,19,57,176,557,1806,5954,19897,67235,229366, 788688,2730810,9512107,33309444,117190184, 414039578,1468349782,5225201321,18651958885, 66769742002,239643164237,862168692562, 3108716586702,11232127258416,40660388117380, 147453014455094]

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Last modified September 19 02:20 EDT 2024. Contains 376003 sequences. (Running on oeis4.)