A007231 - OEIS

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A007231 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`13`
`4`		`52`
`5`		`121`
`6`		`455`
`7`		`1093`
`8`		`4305`
`9`		`9841`
`10`		`36905`
`11`		`88573`
`12`		`348728`
`13`		`797161`
`14`		`2989355`
`15`		`7174453`
`16`		`28585712`
`17`		`64570081`
`18`		`242137805`
`19`		`581130733`
`20`		`2288202262`

[1,5,13,52,121,455,1093,4305,9841,36905,88573, 348728,797161,2989355,7174453,28585712,64570081, 242137805,581130733,2288202262]

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Last modified April 23 07:16 EDT 2024. Contains 371905 sequences. (Running on oeis4.)